EASYTUTORGUIDE

Practical tutorials, tools, courses, digital skills, and business promotion.

Free Learning
Google Translate — English / فارسی / العربية
EasyTutorGuide LogoLearn, Build, & Grow

Chapter 6: Counting Forward and Backward

Learn Grade 2 mathematics with very-beginner explanations, original worked examples, practice, reasoning, and review.

Grade 2Very Beginner Friendly10 Examples Per Topic30 Q&APractice + Review
Estimated reading time0% read
Advertisement area — AdSense / Auto Ads

Chapter Overview

This chapter teaches Counting Forward and Backward with simple explanations, visual thinking, worked examples, practice, and review.

6.1 Counting forward by ones

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 100?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 0 tens, 0 ones

Worked Example 2

Problem: How many hundreds, tens, and ones are in 167?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 6 tens, 7 ones

Worked Example 3

Problem: How many hundreds, tens, and ones are in 177?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 7 tens, 7 ones

Worked Example 4

Problem: How many hundreds, tens, and ones are in 184?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 8 tens, 4 ones

Worked Example 5

Problem: How many hundreds, tens, and ones are in 120?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 2 tens, 0 ones

Worked Example 6

Problem: How many hundreds, tens, and ones are in 110?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 1 tens, 0 ones

Worked Example 7

Problem: How many hundreds, tens, and ones are in 120?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 2 tens, 0 ones

Worked Example 8

Problem: How many hundreds, tens, and ones are in 173?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 7 tens, 3 ones

Worked Example 9

Problem: How many hundreds, tens, and ones are in 121?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 2 tens, 1 ones

Worked Example 10

Problem: How many hundreds, tens, and ones are in 137?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 3 tens, 7 ones

6.2 Counting backward by ones

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 107?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 0 tens, 7 ones

Worked Example 2

Problem: How many hundreds, tens, and ones are in 166?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 6 tens, 6 ones

Worked Example 3

Problem: How many hundreds, tens, and ones are in 194?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 9 tens, 4 ones

Worked Example 4

Problem: How many hundreds, tens, and ones are in 143?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 4 tens, 3 ones

Worked Example 5

Problem: How many hundreds, tens, and ones are in 150?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 5 tens, 0 ones

Worked Example 6

Problem: How many hundreds, tens, and ones are in 159?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 5 tens, 9 ones

Worked Example 7

Problem: How many hundreds, tens, and ones are in 159?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 5 tens, 9 ones

Worked Example 8

Problem: How many hundreds, tens, and ones are in 125?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 2 tens, 5 ones

Worked Example 9

Problem: How many hundreds, tens, and ones are in 154?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 5 tens, 4 ones

Worked Example 10

Problem: How many hundreds, tens, and ones are in 137?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 3 tens, 7 ones

6.3 Counting forward from any number

Counting patterns organize numbers and help with addition, subtraction, and number relationships. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Continue 34, 36, 38, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 40, 42

Worked Example 2

Problem: Continue 21, 22, 23, ...

  1. The rule is add 1.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 24, 25

Worked Example 3

Problem: Continue 7, 12, 17, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 22, 27

Worked Example 4

Problem: Continue 36, 41, 46, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 51, 56

Worked Example 5

Problem: Continue 24, 26, 28, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 30, 32

Worked Example 6

Problem: Continue 33, 43, 53, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 63, 73

Worked Example 7

Problem: Continue 24, 25, 26, ...

  1. The rule is add 1.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 27, 28

Worked Example 8

Problem: Continue 25, 35, 45, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 55, 65

Worked Example 9

Problem: Continue 23, 25, 27, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 29, 31

Worked Example 10

Problem: Continue 35, 36, 37, ...

  1. The rule is add 1.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 38, 39

6.4 Counting backward from any number

Counting patterns organize numbers and help with addition, subtraction, and number relationships. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Continue 4, 14, 24, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 34, 44

Worked Example 2

Problem: Continue 27, 37, 47, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 57, 67

Worked Example 3

Problem: Continue 36, 41, 46, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 51, 56

Worked Example 4

Problem: Continue 26, 31, 36, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 41, 46

Worked Example 5

Problem: Continue 27, 28, 29, ...

  1. The rule is add 1.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 30, 31

Worked Example 6

Problem: Continue 27, 29, 31, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 33, 35

Worked Example 7

Problem: Continue 29, 39, 49, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 59, 69

Worked Example 8

Problem: Continue 11, 13, 15, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 17, 19

Worked Example 9

Problem: Continue 35, 37, 39, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 41, 43

Worked Example 10

Problem: Continue 35, 40, 45, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 50, 55

6.5 Counting across a ten

Counting patterns organize numbers and help with addition, subtraction, and number relationships. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Continue 2, 4, 6, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 8, 10

Worked Example 2

Problem: Continue 38, 39, 40, ...

  1. The rule is add 1.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 41, 42

Worked Example 3

Problem: Continue 39, 41, 43, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 45, 47

Worked Example 4

Problem: Continue 6, 11, 16, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 21, 26

Worked Example 5

Problem: Continue 38, 39, 40, ...

  1. The rule is add 1.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 41, 42

Worked Example 6

Problem: Continue 6, 11, 16, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 21, 26

Worked Example 7

Problem: Continue 6, 7, 8, ...

  1. The rule is add 1.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 9, 10

Worked Example 8

Problem: Continue 24, 26, 28, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 30, 32

Worked Example 9

Problem: Continue 6, 7, 8, ...

  1. The rule is add 1.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 9, 10

Worked Example 10

Problem: Continue 35, 45, 55, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 65, 75

6.6 Counting across 100

Counting patterns organize numbers and help with addition, subtraction, and number relationships. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Continue 34, 39, 44, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 49, 54

Worked Example 2

Problem: Continue 17, 18, 19, ...

  1. The rule is add 1.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 20, 21

Worked Example 3

Problem: Continue 25, 30, 35, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 40, 45

Worked Example 4

Problem: Continue 35, 45, 55, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 65, 75

Worked Example 5

Problem: Continue 7, 8, 9, ...

  1. The rule is add 1.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 10, 11

Worked Example 6

Problem: Continue 12, 17, 22, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 27, 32

Worked Example 7

Problem: Continue 29, 39, 49, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 59, 69

Worked Example 8

Problem: Continue 18, 23, 28, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 33, 38

Worked Example 9

Problem: Continue 30, 40, 50, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 60, 70

Worked Example 10

Problem: Continue 9, 11, 13, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 15, 17

6.7 Counting backward from 50

Counting patterns organize numbers and help with addition, subtraction, and number relationships. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Continue 11, 12, 13, ...

  1. The rule is add 1.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 14, 15

Worked Example 2

Problem: Continue 17, 27, 37, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 47, 57

Worked Example 3

Problem: Continue 2, 4, 6, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 8, 10

Worked Example 4

Problem: Continue 38, 43, 48, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 53, 58

Worked Example 5

Problem: Continue 29, 39, 49, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 59, 69

Worked Example 6

Problem: Continue 11, 13, 15, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 17, 19

Worked Example 7

Problem: Continue 12, 22, 32, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 42, 52

Worked Example 8

Problem: Continue 38, 39, 40, ...

  1. The rule is add 1.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 41, 42

Worked Example 9

Problem: Continue 33, 38, 43, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 48, 53

Worked Example 10

Problem: Continue 12, 14, 16, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 18, 20

6.8 Counting backward from numbers below 50

Counting patterns organize numbers and help with addition, subtraction, and number relationships. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Continue 18, 23, 28, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 33, 38

Worked Example 2

Problem: Continue 34, 44, 54, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 64, 74

Worked Example 3

Problem: Continue 38, 43, 48, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 53, 58

Worked Example 4

Problem: Continue 24, 34, 44, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 54, 64

Worked Example 5

Problem: Continue 14, 24, 34, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 44, 54

Worked Example 6

Problem: Continue 12, 17, 22, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 27, 32

Worked Example 7

Problem: Continue 2, 3, 4, ...

  1. The rule is add 1.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 5, 6

Worked Example 8

Problem: Continue 31, 41, 51, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 61, 71

Worked Example 9

Problem: Continue 25, 30, 35, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 40, 45

Worked Example 10

Problem: Continue 8, 18, 28, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 38, 48

6.9 Counting by tens backward

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 142?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 4 tens, 2 ones

Worked Example 2

Problem: How many hundreds, tens, and ones are in 172?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 7 tens, 2 ones

Worked Example 3

Problem: How many hundreds, tens, and ones are in 186?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 8 tens, 6 ones

Worked Example 4

Problem: How many hundreds, tens, and ones are in 198?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 9 tens, 8 ones

Worked Example 5

Problem: How many hundreds, tens, and ones are in 185?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 8 tens, 5 ones

Worked Example 6

Problem: How many hundreds, tens, and ones are in 168?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 6 tens, 8 ones

Worked Example 7

Problem: How many hundreds, tens, and ones are in 135?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 3 tens, 5 ones

Worked Example 8

Problem: How many hundreds, tens, and ones are in 198?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 9 tens, 8 ones

Worked Example 9

Problem: How many hundreds, tens, and ones are in 143?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 4 tens, 3 ones

Worked Example 10

Problem: How many hundreds, tens, and ones are in 196?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 9 tens, 6 ones

6.10 Using a hundreds chart

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 160?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 6 tens, 0 ones

Worked Example 2

Problem: How many hundreds, tens, and ones are in 123?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 2 tens, 3 ones

Worked Example 3

Problem: How many hundreds, tens, and ones are in 186?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 8 tens, 6 ones

Worked Example 4

Problem: How many hundreds, tens, and ones are in 185?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 8 tens, 5 ones

Worked Example 5

Problem: How many hundreds, tens, and ones are in 187?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 8 tens, 7 ones

Worked Example 6

Problem: How many hundreds, tens, and ones are in 124?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 2 tens, 4 ones

Worked Example 7

Problem: How many hundreds, tens, and ones are in 155?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 5 tens, 5 ones

Worked Example 8

Problem: How many hundreds, tens, and ones are in 126?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 2 tens, 6 ones

Worked Example 9

Problem: How many hundreds, tens, and ones are in 121?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 2 tens, 1 ones

Worked Example 10

Problem: How many hundreds, tens, and ones are in 197?

  1. Read the hundreds digit.
  2. Read the tens digit.
  3. Read the ones digit.

Very beginner explanation: Position tells place value.

Answer: 1 hundred, 9 tens, 7 ones

6.11 Finding counting patterns

Counting patterns organize numbers and help with addition, subtraction, and number relationships. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Continue 27, 29, 31, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 33, 35

Worked Example 2

Problem: Continue 12, 14, 16, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 18, 20

Worked Example 3

Problem: Continue 10, 11, 12, ...

  1. The rule is add 1.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 13, 14

Worked Example 4

Problem: Continue 32, 42, 52, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 62, 72

Worked Example 5

Problem: Continue 7, 9, 11, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 13, 15

Worked Example 6

Problem: Continue 25, 26, 27, ...

  1. The rule is add 1.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 28, 29

Worked Example 7

Problem: Continue 33, 35, 37, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 39, 41

Worked Example 8

Problem: Continue 6, 16, 26, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 36, 46

Worked Example 9

Problem: Continue 33, 38, 43, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 48, 53

Worked Example 10

Problem: Continue 32, 37, 42, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 47, 52

6.12 Real-life counting practice

Counting patterns organize numbers and help with addition, subtraction, and number relationships. Use objects, drawings, number lines, tables, or number sentences when useful.

10 Worked Examples with Answers

Worked Example 1

Problem: Continue 16, 18, 20, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 22, 24

Worked Example 2

Problem: Continue 8, 9, 10, ...

  1. The rule is add 1.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 11, 12

Worked Example 3

Problem: Continue 2, 7, 12, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 17, 22

Worked Example 4

Problem: Continue 12, 17, 22, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 27, 32

Worked Example 5

Problem: Continue 35, 45, 55, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 65, 75

Worked Example 6

Problem: Continue 31, 36, 41, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 46, 51

Worked Example 7

Problem: Continue 4, 6, 8, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 10, 12

Worked Example 8

Problem: Continue 20, 25, 30, ...

  1. The rule is add 5.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 35, 40

Worked Example 9

Problem: Continue 18, 28, 38, ...

  1. The rule is add 10.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 48, 58

Worked Example 10

Problem: Continue 15, 17, 19, ...

  1. The rule is add 2.
  2. Use the same rule again.

Very beginner explanation: Counting patterns use a consistent step.

Answer: 21, 23

30 Review Questions and Answers

Q1. What should a Grade 2 learner understand about Counting forward by ones?

Answer: Place value tells how much a digit is worth because of its position in a number.

Q2. What should a Grade 2 learner understand about Counting backward by ones?

Answer: Place value tells how much a digit is worth because of its position in a number.

Q3. What should a Grade 2 learner understand about Counting forward from any number?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q4. What should a Grade 2 learner understand about Counting backward from any number?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q5. What should a Grade 2 learner understand about Counting across a ten?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q6. What should a Grade 2 learner understand about Counting across 100?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q7. What should a Grade 2 learner understand about Counting backward from 50?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q8. What should a Grade 2 learner understand about Counting backward from numbers below 50?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q9. What should a Grade 2 learner understand about Counting by tens backward?

Answer: Place value tells how much a digit is worth because of its position in a number.

Q10. What should a Grade 2 learner understand about Using a hundreds chart?

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 Finding counting patterns?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q12. What should a Grade 2 learner understand about Real-life counting practice?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q13. What should a Grade 2 learner understand about Counting forward by ones?

Answer: Place value tells how much a digit is worth because of its position in a number.

Q14. What should a Grade 2 learner understand about Counting backward by ones?

Answer: Place value tells how much a digit is worth because of its position in a number.

Q15. What should a Grade 2 learner understand about Counting forward from any number?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q16. What should a Grade 2 learner understand about Counting backward from any number?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q17. What should a Grade 2 learner understand about Counting across a ten?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q18. What should a Grade 2 learner understand about Counting across 100?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q19. What should a Grade 2 learner understand about Counting backward from 50?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q20. What should a Grade 2 learner understand about Counting backward from numbers below 50?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q21. What should a Grade 2 learner understand about Counting by tens backward?

Answer: Place value tells how much a digit is worth because of its position in a number.

Q22. What should a Grade 2 learner understand about Using a hundreds chart?

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 Finding counting patterns?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q24. What should a Grade 2 learner understand about Real-life counting practice?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q25. What should a Grade 2 learner understand about Counting forward by ones?

Answer: Place value tells how much a digit is worth because of its position in a number.

Q26. What should a Grade 2 learner understand about Counting backward by ones?

Answer: Place value tells how much a digit is worth because of its position in a number.

Q27. What should a Grade 2 learner understand about Counting forward from any number?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q28. What should a Grade 2 learner understand about Counting backward from any number?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q29. What should a Grade 2 learner understand about Counting across a ten?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.

Q30. What should a Grade 2 learner understand about Counting across 100?

Answer: Counting patterns organize numbers and help with addition, subtraction, and number relationships.