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Chapter 54: Metric Length and Choosing Units

Learn Grade 4 mathematics with very-beginner explanations, original worked examples, practice, reasoning, and review.

Grade 4Beginner Friendly10 Examples Per Topic30 Q&APractice + Review
Estimated reading time0% read
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Chapter Overview

This chapter teaches Metric Length and Choosing Units in original, simple language with step-by-step reasoning, worked examples, practice exercises, common mistakes, and review questions.

54.1 Millimetres

Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Millimetres using the numbers 15 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Millimetres.

Worked Example 2

Problem: Create a simple Grade 4 example about Millimetres using the numbers 11 and 14.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Millimetres.

Worked Example 3

Problem: Create a simple Grade 4 example about Millimetres using the numbers 15 and 16.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Millimetres.

Worked Example 4

Problem: Create a simple Grade 4 example about Millimetres using the numbers 11 and 20.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Millimetres.

Worked Example 5

Problem: Create a simple Grade 4 example about Millimetres using the numbers 7 and 16.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Millimetres.

Worked Example 6

Problem: Create a simple Grade 4 example about Millimetres using the numbers 15 and 11.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Millimetres.

Worked Example 7

Problem: Create a simple Grade 4 example about Millimetres using the numbers 4 and 18.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Millimetres.

Worked Example 8

Problem: Create a simple Grade 4 example about Millimetres using the numbers 8 and 5.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Millimetres.

Worked Example 9

Problem: Create a simple Grade 4 example about Millimetres using the numbers 20 and 4.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Millimetres.

Worked Example 10

Problem: Create a simple Grade 4 example about Millimetres using the numbers 16 and 2.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Millimetres.

Practice Exercise

Create and solve one new example of Millimetres. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

54.2 Centimetres

Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: An activity starts at 6:00 and lasts 30 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 6:30

Worked Example 2

Problem: An activity starts at 2:00 and lasts 45 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 2:45

Worked Example 3

Problem: An activity starts at 6:00 and lasts 45 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 6:45

Worked Example 4

Problem: An activity starts at 6:00 and lasts 60 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 7:00

Worked Example 5

Problem: An activity starts at 9:00 and lasts 30 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 9:30

Worked Example 6

Problem: An activity starts at 8:00 and lasts 60 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 9:00

Worked Example 7

Problem: An activity starts at 2:00 and lasts 30 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 2:30

Worked Example 8

Problem: An activity starts at 8:00 and lasts 45 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 8:45

Worked Example 9

Problem: An activity starts at 1:00 and lasts 15 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 1:15

Worked Example 10

Problem: An activity starts at 10:00 and lasts 45 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 10:45

Practice Exercise

Create and solve one new example of Centimetres. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

54.3 Metres

Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Metres using the numbers 16 and 11.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Metres.

Worked Example 2

Problem: Create a simple Grade 4 example about Metres using the numbers 7 and 16.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Metres.

Worked Example 3

Problem: Create a simple Grade 4 example about Metres using the numbers 16 and 4.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Metres.

Worked Example 4

Problem: Create a simple Grade 4 example about Metres using the numbers 20 and 11.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Metres.

Worked Example 5

Problem: Create a simple Grade 4 example about Metres using the numbers 3 and 16.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Metres.

Worked Example 6

Problem: Create a simple Grade 4 example about Metres using the numbers 17 and 14.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Metres.

Worked Example 7

Problem: Create a simple Grade 4 example about Metres using the numbers 19 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Metres.

Worked Example 8

Problem: Create a simple Grade 4 example about Metres using the numbers 14 and 14.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Metres.

Worked Example 9

Problem: Create a simple Grade 4 example about Metres using the numbers 8 and 14.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Metres.

Worked Example 10

Problem: Create a simple Grade 4 example about Metres using the numbers 6 and 4.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Metres.

Practice Exercise

Create and solve one new example of Metres. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

54.4 Kilometres

Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Kilometres using the numbers 11 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Kilometres.

Worked Example 2

Problem: Create a simple Grade 4 example about Kilometres using the numbers 10 and 12.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Kilometres.

Worked Example 3

Problem: Create a simple Grade 4 example about Kilometres using the numbers 20 and 5.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Kilometres.

Worked Example 4

Problem: Create a simple Grade 4 example about Kilometres using the numbers 19 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Kilometres.

Worked Example 5

Problem: Create a simple Grade 4 example about Kilometres using the numbers 5 and 2.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Kilometres.

Worked Example 6

Problem: Create a simple Grade 4 example about Kilometres using the numbers 9 and 9.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Kilometres.

Worked Example 7

Problem: Create a simple Grade 4 example about Kilometres using the numbers 11 and 19.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Kilometres.

Worked Example 8

Problem: Create a simple Grade 4 example about Kilometres using the numbers 8 and 13.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Kilometres.

Worked Example 9

Problem: Create a simple Grade 4 example about Kilometres using the numbers 6 and 9.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Kilometres.

Worked Example 10

Problem: Create a simple Grade 4 example about Kilometres using the numbers 12 and 3.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Kilometres.

Practice Exercise

Create and solve one new example of Kilometres. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

54.5 Relationship between millimetres and centimetres

Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: An activity starts at 6:00 and lasts 45 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 6:45

Worked Example 2

Problem: An activity starts at 2:00 and lasts 30 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 2:30

Worked Example 3

Problem: An activity starts at 10:00 and lasts 45 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 10:45

Worked Example 4

Problem: An activity starts at 7:00 and lasts 45 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 7:45

Worked Example 5

Problem: An activity starts at 9:00 and lasts 15 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 9:15

Worked Example 6

Problem: An activity starts at 3:00 and lasts 15 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 3:15

Worked Example 7

Problem: An activity starts at 5:00 and lasts 60 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 6:00

Worked Example 8

Problem: An activity starts at 3:00 and lasts 45 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 3:45

Worked Example 9

Problem: An activity starts at 6:00 and lasts 15 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 6:15

Worked Example 10

Problem: An activity starts at 1:00 and lasts 60 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 2:00

Practice Exercise

Create and solve one new example of Relationship between millimetres and centimetres. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

54.6 Relationship between centimetres and metres

Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: An activity starts at 8:00 and lasts 15 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 8:15

Worked Example 2

Problem: An activity starts at 9:00 and lasts 30 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 9:30

Worked Example 3

Problem: An activity starts at 8:00 and lasts 15 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 8:15

Worked Example 4

Problem: An activity starts at 7:00 and lasts 30 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 7:30

Worked Example 5

Problem: An activity starts at 5:00 and lasts 30 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 5:30

Worked Example 6

Problem: An activity starts at 5:00 and lasts 60 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 6:00

Worked Example 7

Problem: An activity starts at 9:00 and lasts 45 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 9:45

Worked Example 8

Problem: An activity starts at 8:00 and lasts 60 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 9:00

Worked Example 9

Problem: An activity starts at 10:00 and lasts 60 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 11:00

Worked Example 10

Problem: An activity starts at 7:00 and lasts 15 minutes. When does it end?

  1. Add the duration to the start time.
  2. Regroup 60 minutes as one hour when needed.

Very beginner explanation: Elapsed time measures the time between start and finish.

Answer: 7:15

Practice Exercise

Create and solve one new example of Relationship between centimetres and metres. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

54.7 Relationship between metres and kilometres

Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Relationship between metres and kilometres using the numbers 13 and 2.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Relationship between metres and kilometres.

Worked Example 2

Problem: Create a simple Grade 4 example about Relationship between metres and kilometres using the numbers 20 and 3.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Relationship between metres and kilometres.

Worked Example 3

Problem: Create a simple Grade 4 example about Relationship between metres and kilometres using the numbers 10 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Relationship between metres and kilometres.

Worked Example 4

Problem: Create a simple Grade 4 example about Relationship between metres and kilometres using the numbers 17 and 9.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Relationship between metres and kilometres.

Worked Example 5

Problem: Create a simple Grade 4 example about Relationship between metres and kilometres using the numbers 11 and 18.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Relationship between metres and kilometres.

Worked Example 6

Problem: Create a simple Grade 4 example about Relationship between metres and kilometres using the numbers 17 and 12.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Relationship between metres and kilometres.

Worked Example 7

Problem: Create a simple Grade 4 example about Relationship between metres and kilometres using the numbers 12 and 13.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Relationship between metres and kilometres.

Worked Example 8

Problem: Create a simple Grade 4 example about Relationship between metres and kilometres using the numbers 16 and 17.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Relationship between metres and kilometres.

Worked Example 9

Problem: Create a simple Grade 4 example about Relationship between metres and kilometres using the numbers 15 and 9.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Relationship between metres and kilometres.

Worked Example 10

Problem: Create a simple Grade 4 example about Relationship between metres and kilometres using the numbers 7 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Relationship between metres and kilometres.

Practice Exercise

Create and solve one new example of Relationship between metres and kilometres. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

54.8 Choosing a suitable length unit

Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Choosing a suitable length unit using the numbers 20 and 3.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Choosing a suitable length unit.

Worked Example 2

Problem: Create a simple Grade 4 example about Choosing a suitable length unit using the numbers 20 and 11.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Choosing a suitable length unit.

Worked Example 3

Problem: Create a simple Grade 4 example about Choosing a suitable length unit using the numbers 15 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Choosing a suitable length unit.

Worked Example 4

Problem: Create a simple Grade 4 example about Choosing a suitable length unit using the numbers 19 and 9.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Choosing a suitable length unit.

Worked Example 5

Problem: Create a simple Grade 4 example about Choosing a suitable length unit using the numbers 17 and 2.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Choosing a suitable length unit.

Worked Example 6

Problem: Create a simple Grade 4 example about Choosing a suitable length unit using the numbers 7 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Choosing a suitable length unit.

Worked Example 7

Problem: Create a simple Grade 4 example about Choosing a suitable length unit using the numbers 7 and 12.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Choosing a suitable length unit.

Worked Example 8

Problem: Create a simple Grade 4 example about Choosing a suitable length unit using the numbers 10 and 20.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Choosing a suitable length unit.

Worked Example 9

Problem: Create a simple Grade 4 example about Choosing a suitable length unit using the numbers 12 and 6.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Choosing a suitable length unit.

Worked Example 10

Problem: Create a simple Grade 4 example about Choosing a suitable length unit using the numbers 11 and 19.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Choosing a suitable length unit.

Practice Exercise

Create and solve one new example of Choosing a suitable length unit. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

54.9 Using a ruler

A pattern follows a predictable rule. Repeating patterns repeat a core; growing patterns change in a consistent way. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Using a ruler using the numbers 13 and 17.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a ruler.

Worked Example 2

Problem: Create a simple Grade 4 example about Using a ruler using the numbers 3 and 20.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a ruler.

Worked Example 3

Problem: Create a simple Grade 4 example about Using a ruler using the numbers 15 and 18.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a ruler.

Worked Example 4

Problem: Create a simple Grade 4 example about Using a ruler using the numbers 11 and 9.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a ruler.

Worked Example 5

Problem: Create a simple Grade 4 example about Using a ruler using the numbers 9 and 17.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a ruler.

Worked Example 6

Problem: Create a simple Grade 4 example about Using a ruler using the numbers 2 and 20.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a ruler.

Worked Example 7

Problem: Create a simple Grade 4 example about Using a ruler using the numbers 17 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a ruler.

Worked Example 8

Problem: Create a simple Grade 4 example about Using a ruler using the numbers 3 and 19.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a ruler.

Worked Example 9

Problem: Create a simple Grade 4 example about Using a ruler using the numbers 10 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a ruler.

Worked Example 10

Problem: Create a simple Grade 4 example about Using a ruler using the numbers 18 and 3.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a ruler.

Practice Exercise

Create and solve one new example of Using a ruler. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

54.10 Using a metre stick

Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Using a metre stick using the numbers 13 and 5.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a metre stick.

Worked Example 2

Problem: Create a simple Grade 4 example about Using a metre stick using the numbers 2 and 5.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a metre stick.

Worked Example 3

Problem: Create a simple Grade 4 example about Using a metre stick using the numbers 17 and 11.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a metre stick.

Worked Example 4

Problem: Create a simple Grade 4 example about Using a metre stick using the numbers 7 and 16.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a metre stick.

Worked Example 5

Problem: Create a simple Grade 4 example about Using a metre stick using the numbers 11 and 19.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a metre stick.

Worked Example 6

Problem: Create a simple Grade 4 example about Using a metre stick using the numbers 14 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a metre stick.

Worked Example 7

Problem: Create a simple Grade 4 example about Using a metre stick using the numbers 4 and 4.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a metre stick.

Worked Example 8

Problem: Create a simple Grade 4 example about Using a metre stick using the numbers 19 and 15.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a metre stick.

Worked Example 9

Problem: Create a simple Grade 4 example about Using a metre stick using the numbers 15 and 20.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a metre stick.

Worked Example 10

Problem: Create a simple Grade 4 example about Using a metre stick using the numbers 13 and 3.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Using a metre stick.

Practice Exercise

Create and solve one new example of Using a metre stick. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

54.11 Estimating length

Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Estimating length using the numbers 13 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Estimating length.

Worked Example 2

Problem: Create a simple Grade 4 example about Estimating length using the numbers 8 and 11.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Estimating length.

Worked Example 3

Problem: Create a simple Grade 4 example about Estimating length using the numbers 4 and 3.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Estimating length.

Worked Example 4

Problem: Create a simple Grade 4 example about Estimating length using the numbers 16 and 16.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Estimating length.

Worked Example 5

Problem: Create a simple Grade 4 example about Estimating length using the numbers 2 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Estimating length.

Worked Example 6

Problem: Create a simple Grade 4 example about Estimating length using the numbers 17 and 14.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Estimating length.

Worked Example 7

Problem: Create a simple Grade 4 example about Estimating length using the numbers 19 and 8.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Estimating length.

Worked Example 8

Problem: Create a simple Grade 4 example about Estimating length using the numbers 8 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Estimating length.

Worked Example 9

Problem: Create a simple Grade 4 example about Estimating length using the numbers 10 and 5.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Estimating length.

Worked Example 10

Problem: Create a simple Grade 4 example about Estimating length using the numbers 6 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Estimating length.

Practice Exercise

Create and solve one new example of Estimating length. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

54.12 Checking whether a measurement is reasonable

Checking whether a measurement is reasonable is an important Grade 4 mathematics idea in Metric Length and Choosing Units. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense. Work one step at a time, use a model or number sentence when useful, and check whether the answer is reasonable.

Beginner Explanation

First identify what is given and what must be found. Then choose a strategy, show the steps clearly, and check the final answer.

10 Worked Examples with Answers

Worked Example 1

Problem: Create a simple Grade 4 example about Checking whether a measurement is reasonable using the numbers 10 and 3.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Checking whether a measurement is reasonable.

Worked Example 2

Problem: Create a simple Grade 4 example about Checking whether a measurement is reasonable using the numbers 5 and 6.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Checking whether a measurement is reasonable.

Worked Example 3

Problem: Create a simple Grade 4 example about Checking whether a measurement is reasonable using the numbers 13 and 7.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Checking whether a measurement is reasonable.

Worked Example 4

Problem: Create a simple Grade 4 example about Checking whether a measurement is reasonable using the numbers 15 and 13.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Checking whether a measurement is reasonable.

Worked Example 5

Problem: Create a simple Grade 4 example about Checking whether a measurement is reasonable using the numbers 20 and 15.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Checking whether a measurement is reasonable.

Worked Example 6

Problem: Create a simple Grade 4 example about Checking whether a measurement is reasonable using the numbers 10 and 3.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Checking whether a measurement is reasonable.

Worked Example 7

Problem: Create a simple Grade 4 example about Checking whether a measurement is reasonable using the numbers 18 and 9.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Checking whether a measurement is reasonable.

Worked Example 8

Problem: Create a simple Grade 4 example about Checking whether a measurement is reasonable using the numbers 6 and 10.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Checking whether a measurement is reasonable.

Worked Example 9

Problem: Create a simple Grade 4 example about Checking whether a measurement is reasonable using the numbers 3 and 14.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Checking whether a measurement is reasonable.

Worked Example 10

Problem: Create a simple Grade 4 example about Checking whether a measurement is reasonable using the numbers 5 and 14.

  1. Identify what the topic means.
  2. Use the numbers in a way that follows the rule.
  3. Check that the result or representation makes sense.

Very beginner explanation: Meaning comes first; the numbers should illustrate the concept clearly.

Answer: A correct example that demonstrates Checking whether a measurement is reasonable.

Practice Exercise

Create and solve one new example of Checking whether a measurement is reasonable. Show the steps and explain how you checked it.

Common Mistake

Do not rush into a calculation before understanding the question. Check place values, labels, units, and whether your answer fits the situation.

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30 Review Questions and Answers

Q1. What is important to understand about Millimetres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q2. What is important to understand about Centimetres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q3. What is important to understand about Metres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q4. What is important to understand about Kilometres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q5. What is important to understand about Relationship between millimetres and centimetres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q6. What is important to understand about Relationship between centimetres and metres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q7. What is important to understand about Relationship between metres and kilometres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q8. What is important to understand about Choosing a suitable length unit?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q9. What is important to understand about Using a ruler?

Answer: A pattern follows a predictable rule. Repeating patterns repeat a core; growing patterns change in a consistent way.

Q10. What is important to understand about Using a metre stick?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q11. What is important to understand about Estimating length?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q12. What is important to understand about Checking whether a measurement is reasonable?

Answer: Checking whether a measurement is reasonable is an important Grade 4 mathematics idea in Metric Length and Choosing Units. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.

Q13. How would you explain Millimetres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q14. How would you explain Centimetres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q15. How would you explain Metres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q16. How would you explain Kilometres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q17. How would you explain Relationship between millimetres and centimetres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q18. How would you explain Relationship between centimetres and metres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q19. How would you explain Relationship between metres and kilometres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q20. How would you explain Choosing a suitable length unit?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q21. How would you explain Using a ruler?

Answer: A pattern follows a predictable rule. Repeating patterns repeat a core; growing patterns change in a consistent way.

Q22. How would you explain Using a metre stick?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q23. How would you explain Estimating length?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q24. How would you explain Checking whether a measurement is reasonable?

Answer: Checking whether a measurement is reasonable is an important Grade 4 mathematics idea in Metric Length and Choosing Units. Understand the meaning first, then use a clear representation or strategy and check whether the answer makes sense.

Q25. What should a beginner check when working with Millimetres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q26. What should a beginner check when working with Centimetres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q27. What should a beginner check when working with Metres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q28. What should a beginner check when working with Kilometres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q29. What should a beginner check when working with Relationship between millimetres and centimetres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.

Q30. What should a beginner check when working with Relationship between centimetres and metres?

Answer: Metric measurement uses standard units. Choose a unit that matches the kind and size of the quantity.