Chapter 56: Reading Clocks and Time
Learn Grade 2 mathematics with very-beginner explanations, original worked examples, practice, reasoning, and review.
Chapter Overview
This chapter teaches Reading Clocks and Time with simple explanations, visual thinking, worked examples, practice, and review.
56.1 Clock face
Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end. Use objects, drawings, number lines, tables, or number sentences when useful.
10 Worked Examples with Answers
Worked Example 1
Problem: An activity starts at 9:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 10:00
Worked Example 2
Problem: An activity starts at 2:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 2:30
Worked Example 3
Problem: An activity starts at 8:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 9:00
Worked Example 4
Problem: An activity starts at 6:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 7:00
Worked Example 5
Problem: An activity starts at 6:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 7:00
Worked Example 6
Problem: An activity starts at 4:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 5:00
Worked Example 7
Problem: An activity starts at 9:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 10:00
Worked Example 8
Problem: An activity starts at 7:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 8:00
Worked Example 9
Problem: An activity starts at 6:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 7:00
Worked Example 10
Problem: An activity starts at 9:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 10:00
56.2 Hour hand
Hour hand is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words. Use objects, drawings, number lines, tables, or number sentences when useful.
10 Worked Examples with Answers
Worked Example 1
Problem: Use 6 and 4 to make a simple example about Hour hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Hour hand.
Worked Example 2
Problem: Use 16 and 11 to make a simple example about Hour hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Hour hand.
Worked Example 3
Problem: Use 5 and 13 to make a simple example about Hour hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Hour hand.
Worked Example 4
Problem: Use 18 and 20 to make a simple example about Hour hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Hour hand.
Worked Example 5
Problem: Use 6 and 20 to make a simple example about Hour hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Hour hand.
Worked Example 6
Problem: Use 15 and 8 to make a simple example about Hour hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Hour hand.
Worked Example 7
Problem: Use 13 and 17 to make a simple example about Hour hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Hour hand.
Worked Example 8
Problem: Use 8 and 20 to make a simple example about Hour hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Hour hand.
Worked Example 9
Problem: Use 10 and 13 to make a simple example about Hour hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Hour hand.
Worked Example 10
Problem: Use 10 and 16 to make a simple example about Hour hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Hour hand.
56.3 Minute hand
Minute hand is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words. Use objects, drawings, number lines, tables, or number sentences when useful.
10 Worked Examples with Answers
Worked Example 1
Problem: Use 6 and 17 to make a simple example about Minute hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Minute hand.
Worked Example 2
Problem: Use 17 and 15 to make a simple example about Minute hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Minute hand.
Worked Example 3
Problem: Use 3 and 8 to make a simple example about Minute hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Minute hand.
Worked Example 4
Problem: Use 20 and 4 to make a simple example about Minute hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Minute hand.
Worked Example 5
Problem: Use 17 and 9 to make a simple example about Minute hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Minute hand.
Worked Example 6
Problem: Use 8 and 20 to make a simple example about Minute hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Minute hand.
Worked Example 7
Problem: Use 9 and 12 to make a simple example about Minute hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Minute hand.
Worked Example 8
Problem: Use 4 and 19 to make a simple example about Minute hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Minute hand.
Worked Example 9
Problem: Use 2 and 12 to make a simple example about Minute hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Minute hand.
Worked Example 10
Problem: Use 7 and 1 to make a simple example about Minute hand.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Minute hand.
56.4 Reading time to the hour
Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end. Use objects, drawings, number lines, tables, or number sentences when useful.
10 Worked Examples with Answers
Worked Example 1
Problem: An activity starts at 7:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 8:00
Worked Example 2
Problem: An activity starts at 5:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 6:00
Worked Example 3
Problem: An activity starts at 9:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 9:30
Worked Example 4
Problem: An activity starts at 1:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 1:30
Worked Example 5
Problem: An activity starts at 3:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 4:00
Worked Example 6
Problem: An activity starts at 9:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 9:30
Worked Example 7
Problem: An activity starts at 8:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 9:00
Worked Example 8
Problem: An activity starts at 7:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 7:30
Worked Example 9
Problem: An activity starts at 6:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 7:00
Worked Example 10
Problem: An activity starts at 10:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 10:30
56.5 Reading time to the half hour
Fractions begin with fair sharing. Equal parts must be the same size, and equal parts can be joined to make a whole. Use objects, drawings, number lines, tables, or number sentences when useful.
10 Worked Examples with Answers
Worked Example 1
Problem: 8 objects are shared equally among 4 people. How many does each person get?
- Make equal groups.
- Share until all objects are used.
- Check that every group is equal.
Very beginner explanation: Fair sharing creates equal groups.
Answer: 2
Worked Example 2
Problem: 3 objects are shared equally among 3 people. How many does each person get?
- Make equal groups.
- Share until all objects are used.
- Check that every group is equal.
Very beginner explanation: Fair sharing creates equal groups.
Answer: 1
Worked Example 3
Problem: 4 objects are shared equally among 4 people. How many does each person get?
- Make equal groups.
- Share until all objects are used.
- Check that every group is equal.
Very beginner explanation: Fair sharing creates equal groups.
Answer: 1
Worked Example 4
Problem: 6 objects are shared equally among 3 people. How many does each person get?
- Make equal groups.
- Share until all objects are used.
- Check that every group is equal.
Very beginner explanation: Fair sharing creates equal groups.
Answer: 2
Worked Example 5
Problem: 3 objects are shared equally among 3 people. How many does each person get?
- Make equal groups.
- Share until all objects are used.
- Check that every group is equal.
Very beginner explanation: Fair sharing creates equal groups.
Answer: 1
Worked Example 6
Problem: 2 objects are shared equally among 2 people. How many does each person get?
- Make equal groups.
- Share until all objects are used.
- Check that every group is equal.
Very beginner explanation: Fair sharing creates equal groups.
Answer: 1
Worked Example 7
Problem: 12 objects are shared equally among 4 people. How many does each person get?
- Make equal groups.
- Share until all objects are used.
- Check that every group is equal.
Very beginner explanation: Fair sharing creates equal groups.
Answer: 3
Worked Example 8
Problem: 4 objects are shared equally among 4 people. How many does each person get?
- Make equal groups.
- Share until all objects are used.
- Check that every group is equal.
Very beginner explanation: Fair sharing creates equal groups.
Answer: 1
Worked Example 9
Problem: 16 objects are shared equally among 4 people. How many does each person get?
- Make equal groups.
- Share until all objects are used.
- Check that every group is equal.
Very beginner explanation: Fair sharing creates equal groups.
Answer: 4
Worked Example 10
Problem: 16 objects are shared equally among 4 people. How many does each person get?
- Make equal groups.
- Share until all objects are used.
- Check that every group is equal.
Very beginner explanation: Fair sharing creates equal groups.
Answer: 4
56.6 Reading quarter past
Reading quarter past is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words. Use objects, drawings, number lines, tables, or number sentences when useful.
10 Worked Examples with Answers
Worked Example 1
Problem: Use 19 and 16 to make a simple example about Reading quarter past.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter past.
Worked Example 2
Problem: Use 11 and 4 to make a simple example about Reading quarter past.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter past.
Worked Example 3
Problem: Use 10 and 12 to make a simple example about Reading quarter past.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter past.
Worked Example 4
Problem: Use 11 and 9 to make a simple example about Reading quarter past.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter past.
Worked Example 5
Problem: Use 4 and 10 to make a simple example about Reading quarter past.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter past.
Worked Example 6
Problem: Use 10 and 18 to make a simple example about Reading quarter past.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter past.
Worked Example 7
Problem: Use 19 and 14 to make a simple example about Reading quarter past.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter past.
Worked Example 8
Problem: Use 13 and 10 to make a simple example about Reading quarter past.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter past.
Worked Example 9
Problem: Use 17 and 9 to make a simple example about Reading quarter past.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter past.
Worked Example 10
Problem: Use 20 and 10 to make a simple example about Reading quarter past.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter past.
56.7 Reading quarter to
Reading quarter to is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words. Use objects, drawings, number lines, tables, or number sentences when useful.
10 Worked Examples with Answers
Worked Example 1
Problem: Use 16 and 16 to make a simple example about Reading quarter to.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter to.
Worked Example 2
Problem: Use 5 and 3 to make a simple example about Reading quarter to.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter to.
Worked Example 3
Problem: Use 16 and 15 to make a simple example about Reading quarter to.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter to.
Worked Example 4
Problem: Use 4 and 2 to make a simple example about Reading quarter to.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter to.
Worked Example 5
Problem: Use 6 and 8 to make a simple example about Reading quarter to.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter to.
Worked Example 6
Problem: Use 7 and 13 to make a simple example about Reading quarter to.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter to.
Worked Example 7
Problem: Use 9 and 2 to make a simple example about Reading quarter to.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter to.
Worked Example 8
Problem: Use 2 and 18 to make a simple example about Reading quarter to.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter to.
Worked Example 9
Problem: Use 6 and 9 to make a simple example about Reading quarter to.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter to.
Worked Example 10
Problem: Use 7 and 12 to make a simple example about Reading quarter to.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Reading quarter to.
56.8 Morning and afternoon
Morning and afternoon is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words. Use objects, drawings, number lines, tables, or number sentences when useful.
10 Worked Examples with Answers
Worked Example 1
Problem: Use 17 and 6 to make a simple example about Morning and afternoon.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Morning and afternoon.
Worked Example 2
Problem: Use 6 and 6 to make a simple example about Morning and afternoon.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Morning and afternoon.
Worked Example 3
Problem: Use 3 and 1 to make a simple example about Morning and afternoon.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Morning and afternoon.
Worked Example 4
Problem: Use 14 and 19 to make a simple example about Morning and afternoon.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Morning and afternoon.
Worked Example 5
Problem: Use 15 and 11 to make a simple example about Morning and afternoon.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Morning and afternoon.
Worked Example 6
Problem: Use 5 and 14 to make a simple example about Morning and afternoon.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Morning and afternoon.
Worked Example 7
Problem: Use 9 and 10 to make a simple example about Morning and afternoon.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Morning and afternoon.
Worked Example 8
Problem: Use 13 and 4 to make a simple example about Morning and afternoon.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Morning and afternoon.
Worked Example 9
Problem: Use 6 and 2 to make a simple example about Morning and afternoon.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Morning and afternoon.
Worked Example 10
Problem: Use 1 and 4 to make a simple example about Morning and afternoon.
- Recall the topic meaning.
- Use objects, a drawing, or a number sentence.
- Check that the example matches the idea.
Very beginner explanation: Simple models make Grade 2 ideas easier to understand.
Answer: A correct Grade 2 example of Morning and afternoon.
56.9 Ordering times in a day
Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end. Use objects, drawings, number lines, tables, or number sentences when useful.
10 Worked Examples with Answers
Worked Example 1
Problem: An activity starts at 2:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 3:00
Worked Example 2
Problem: An activity starts at 6:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 6:30
Worked Example 3
Problem: An activity starts at 6:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 7:00
Worked Example 4
Problem: An activity starts at 9:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 9:30
Worked Example 5
Problem: An activity starts at 1:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 2:00
Worked Example 6
Problem: An activity starts at 1:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 1:30
Worked Example 7
Problem: An activity starts at 5:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 5:30
Worked Example 8
Problem: An activity starts at 4:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 5:00
Worked Example 9
Problem: An activity starts at 3:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 4:00
Worked Example 10
Problem: An activity starts at 9:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 9:30
56.10 Matching analog and digital times
Place value tells how much a digit is worth because of its position in a number. Use objects, drawings, number lines, tables, or number sentences when useful.
10 Worked Examples with Answers
Worked Example 1
Problem: How many hundreds, tens, and ones are in 175?
- Read the hundreds digit.
- Read the tens digit.
- Read the ones digit.
Very beginner explanation: Position tells place value.
Answer: 1 hundred, 7 tens, 5 ones
Worked Example 2
Problem: How many hundreds, tens, and ones are in 144?
- Read the hundreds digit.
- Read the tens digit.
- Read the ones digit.
Very beginner explanation: Position tells place value.
Answer: 1 hundred, 4 tens, 4 ones
Worked Example 3
Problem: How many hundreds, tens, and ones are in 139?
- Read the hundreds digit.
- Read the tens digit.
- Read the ones digit.
Very beginner explanation: Position tells place value.
Answer: 1 hundred, 3 tens, 9 ones
Worked Example 4
Problem: How many hundreds, tens, and ones are in 133?
- Read the hundreds digit.
- Read the tens digit.
- Read the ones digit.
Very beginner explanation: Position tells place value.
Answer: 1 hundred, 3 tens, 3 ones
Worked Example 5
Problem: How many hundreds, tens, and ones are in 147?
- Read the hundreds digit.
- Read the tens digit.
- Read the ones digit.
Very beginner explanation: Position tells place value.
Answer: 1 hundred, 4 tens, 7 ones
Worked Example 6
Problem: How many hundreds, tens, and ones are in 163?
- Read the hundreds digit.
- Read the tens digit.
- Read the ones digit.
Very beginner explanation: Position tells place value.
Answer: 1 hundred, 6 tens, 3 ones
Worked Example 7
Problem: How many hundreds, tens, and ones are in 166?
- Read the hundreds digit.
- Read the tens digit.
- Read the ones digit.
Very beginner explanation: Position tells place value.
Answer: 1 hundred, 6 tens, 6 ones
Worked Example 8
Problem: How many hundreds, tens, and ones are in 163?
- Read the hundreds digit.
- Read the tens digit.
- Read the ones digit.
Very beginner explanation: Position tells place value.
Answer: 1 hundred, 6 tens, 3 ones
Worked Example 9
Problem: How many hundreds, tens, and ones are in 178?
- Read the hundreds digit.
- Read the tens digit.
- Read the ones digit.
Very beginner explanation: Position tells place value.
Answer: 1 hundred, 7 tens, 8 ones
Worked Example 10
Problem: How many hundreds, tens, and ones are in 127?
- Read the hundreds digit.
- Read the tens digit.
- Read the ones digit.
Very beginner explanation: Position tells place value.
Answer: 1 hundred, 2 tens, 7 ones
56.11 Writing a time
Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end. Use objects, drawings, number lines, tables, or number sentences when useful.
10 Worked Examples with Answers
Worked Example 1
Problem: An activity starts at 5:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 5:30
Worked Example 2
Problem: An activity starts at 9:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 10:00
Worked Example 3
Problem: An activity starts at 5:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 6:00
Worked Example 4
Problem: An activity starts at 10:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 11:00
Worked Example 5
Problem: An activity starts at 3:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 4:00
Worked Example 6
Problem: An activity starts at 2:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 2:30
Worked Example 7
Problem: An activity starts at 4:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 4:30
Worked Example 8
Problem: An activity starts at 5:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 5:30
Worked Example 9
Problem: An activity starts at 7:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 7:30
Worked Example 10
Problem: An activity starts at 8:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 8:30
56.12 Time in daily routines
Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end. Use objects, drawings, number lines, tables, or number sentences when useful.
10 Worked Examples with Answers
Worked Example 1
Problem: An activity starts at 5:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 5:30
Worked Example 2
Problem: An activity starts at 1:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 1:30
Worked Example 3
Problem: An activity starts at 1:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 2:00
Worked Example 4
Problem: An activity starts at 2:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 2:30
Worked Example 5
Problem: An activity starts at 6:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 7:00
Worked Example 6
Problem: An activity starts at 8:00 and lasts 30 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 8:30
Worked Example 7
Problem: An activity starts at 8:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 9:00
Worked Example 8
Problem: An activity starts at 5:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 6:00
Worked Example 9
Problem: An activity starts at 3:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 4:00
Worked Example 10
Problem: An activity starts at 7:00 and lasts 60 minutes. When does it end?
- Move forward by the elapsed time.
Very beginner explanation: Elapsed time tells how long passes.
Answer: 8:00
30 Review Questions and Answers
Q1. What should a Grade 2 learner understand about Clock face?
Answer: Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end.
Q2. What should a Grade 2 learner understand about Hour hand?
Answer: Hour hand is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.
Q3. What should a Grade 2 learner understand about Minute hand?
Answer: Minute hand is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.
Q4. What should a Grade 2 learner understand about Reading time to the hour?
Answer: Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end.
Q5. What should a Grade 2 learner understand about Reading time to the half hour?
Answer: Fractions begin with fair sharing. Equal parts must be the same size, and equal parts can be joined to make a whole.
Q6. What should a Grade 2 learner understand about Reading quarter past?
Answer: Reading quarter past is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.
Q7. What should a Grade 2 learner understand about Reading quarter to?
Answer: Reading quarter to is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.
Q8. What should a Grade 2 learner understand about Morning and afternoon?
Answer: Morning and afternoon is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.
Q9. What should a Grade 2 learner understand about Ordering times in a day?
Answer: Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end.
Q10. What should a Grade 2 learner understand about Matching analog and digital times?
Answer: Place value tells how much a digit is worth because of its position in a number.
Q11. What should a Grade 2 learner understand about Writing a time?
Answer: Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end.
Q12. What should a Grade 2 learner understand about Time in daily routines?
Answer: Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end.
Q13. What should a Grade 2 learner understand about Clock face?
Answer: Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end.
Q14. What should a Grade 2 learner understand about Hour hand?
Answer: Hour hand is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.
Q15. What should a Grade 2 learner understand about Minute hand?
Answer: Minute hand is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.
Q16. What should a Grade 2 learner understand about Reading time to the hour?
Answer: Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end.
Q17. What should a Grade 2 learner understand about Reading time to the half hour?
Answer: Fractions begin with fair sharing. Equal parts must be the same size, and equal parts can be joined to make a whole.
Q18. What should a Grade 2 learner understand about Reading quarter past?
Answer: Reading quarter past is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.
Q19. What should a Grade 2 learner understand about Reading quarter to?
Answer: Reading quarter to is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.
Q20. What should a Grade 2 learner understand about Morning and afternoon?
Answer: Morning and afternoon is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.
Q21. What should a Grade 2 learner understand about Ordering times in a day?
Answer: Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end.
Q22. What should a Grade 2 learner understand about Matching analog and digital times?
Answer: Place value tells how much a digit is worth because of its position in a number.
Q23. What should a Grade 2 learner understand about Writing a time?
Answer: Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end.
Q24. What should a Grade 2 learner understand about Time in daily routines?
Answer: Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end.
Q25. What should a Grade 2 learner understand about Clock face?
Answer: Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end.
Q26. What should a Grade 2 learner understand about Hour hand?
Answer: Hour hand is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.
Q27. What should a Grade 2 learner understand about Minute hand?
Answer: Minute hand is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.
Q28. What should a Grade 2 learner understand about Reading time to the hour?
Answer: Time is read with clocks and calendars. Elapsed time tells how long passes between a start and an end.
Q29. What should a Grade 2 learner understand about Reading time to the half hour?
Answer: Fractions begin with fair sharing. Equal parts must be the same size, and equal parts can be joined to make a whole.
Q30. What should a Grade 2 learner understand about Reading quarter past?
Answer: Reading quarter past is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.