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Chapter 2: Hundreds, Tens, and Ones

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
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Chapter Overview

This chapter teaches Hundreds, Tens, and Ones with simple explanations, visual thinking, worked examples, practice, and review.

2.1 Hundreds place

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 102?

  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, 2 ones

Worked Example 2

Problem: How many hundreds, tens, and ones are in 182?

  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, 2 ones

Worked Example 3

Problem: How many hundreds, tens, and ones are in 183?

  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, 3 ones

Worked Example 4

Problem: How many hundreds, tens, and ones are in 144?

  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, 4 ones

Worked Example 5

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

Worked Example 6

Problem: How many hundreds, tens, and ones are in 152?

  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, 2 ones

Worked Example 7

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

Worked Example 8

Problem: How many hundreds, tens, and ones are in 111?

  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, 1 ones

Worked Example 9

Problem: How many hundreds, tens, and ones are in 161?

  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, 1 ones

Worked Example 10

Problem: How many hundreds, tens, and ones are in 180?

  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, 0 ones

2.2 Tens place

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 171?

  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, 1 ones

Worked Example 2

Problem: How many hundreds, tens, and ones are in 103?

  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, 3 ones

Worked Example 3

Problem: How many hundreds, tens, and ones are in 122?

  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, 2 ones

Worked Example 4

Problem: How many hundreds, tens, and ones are in 131?

  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, 1 ones

Worked Example 5

Problem: How many hundreds, tens, and ones are in 180?

  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, 0 ones

Worked Example 6

Problem: How many hundreds, tens, and ones are in 102?

  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, 2 ones

Worked Example 7

Problem: How many hundreds, tens, and ones are in 163?

  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, 3 ones

Worked Example 8

Problem: How many hundreds, tens, and ones are in 131?

  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, 1 ones

Worked Example 9

Problem: How many hundreds, tens, and ones are in 179?

  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, 9 ones

Worked Example 10

Problem: How many hundreds, tens, and ones are in 114?

  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, 4 ones

2.3 Ones place

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 178?

  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, 8 ones

Worked Example 2

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 3

Problem: How many hundreds, tens, and ones are in 199?

  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, 9 ones

Worked Example 4

Problem: How many hundreds, tens, and ones are in 114?

  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, 4 ones

Worked Example 5

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 6

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 7

Problem: How many hundreds, tens, and ones are in 148?

  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, 8 ones

Worked Example 8

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 9

Problem: How many hundreds, tens, and ones are in 180?

  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, 0 ones

Worked Example 10

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

2.4 Building numbers with hundreds tens and 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 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

Worked Example 2

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 3

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 4

Problem: How many hundreds, tens, and ones are in 193?

  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, 3 ones

Worked Example 5

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 6

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 7

Problem: How many hundreds, tens, and ones are in 157?

  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, 7 ones

Worked Example 8

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 9

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 10

Problem: How many hundreds, tens, and ones are in 199?

  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, 9 ones

2.5 Reading place-value models

Reading place-value models 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 7 and 7 to make a simple example about Reading place-value models.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 place-value models.

Worked Example 2

Problem: Use 11 and 19 to make a simple example about Reading place-value models.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 place-value models.

Worked Example 3

Problem: Use 13 and 4 to make a simple example about Reading place-value models.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 place-value models.

Worked Example 4

Problem: Use 3 and 3 to make a simple example about Reading place-value models.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 place-value models.

Worked Example 5

Problem: Use 12 and 11 to make a simple example about Reading place-value models.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 place-value models.

Worked Example 6

Problem: Use 11 and 6 to make a simple example about Reading place-value models.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 place-value models.

Worked Example 7

Problem: Use 15 and 12 to make a simple example about Reading place-value models.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 place-value models.

Worked Example 8

Problem: Use 9 and 16 to make a simple example about Reading place-value models.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 place-value models.

Worked Example 9

Problem: Use 11 and 10 to make a simple example about Reading place-value models.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 place-value models.

Worked Example 10

Problem: Use 7 and 5 to make a simple example about Reading place-value models.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 place-value models.

2.6 Writing place-value models as numerals

Writing place-value models as numerals 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 13 and 18 to make a simple example about Writing place-value models as numerals.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Writing place-value models as numerals.

Worked Example 2

Problem: Use 19 and 10 to make a simple example about Writing place-value models as numerals.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Writing place-value models as numerals.

Worked Example 3

Problem: Use 4 and 16 to make a simple example about Writing place-value models as numerals.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Writing place-value models as numerals.

Worked Example 4

Problem: Use 1 and 19 to make a simple example about Writing place-value models as numerals.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Writing place-value models as numerals.

Worked Example 5

Problem: Use 14 and 3 to make a simple example about Writing place-value models as numerals.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Writing place-value models as numerals.

Worked Example 6

Problem: Use 4 and 3 to make a simple example about Writing place-value models as numerals.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Writing place-value models as numerals.

Worked Example 7

Problem: Use 8 and 14 to make a simple example about Writing place-value models as numerals.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Writing place-value models as numerals.

Worked Example 8

Problem: Use 11 and 7 to make a simple example about Writing place-value models as numerals.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Writing place-value models as numerals.

Worked Example 9

Problem: Use 14 and 14 to make a simple example about Writing place-value models as numerals.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Writing place-value models as numerals.

Worked Example 10

Problem: Use 16 and 6 to make a simple example about Writing place-value models as numerals.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Writing place-value models as numerals.

2.7 Value of a digit

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 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 2

Problem: How many hundreds, tens, and ones are in 129?

  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, 9 ones

Worked Example 3

Problem: How many hundreds, tens, and ones are in 156?

  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, 6 ones

Worked Example 4

Problem: How many hundreds, tens, and ones are in 138?

  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, 8 ones

Worked Example 5

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 6

Problem: How many hundreds, tens, and ones are in 189?

  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, 9 ones

Worked Example 7

Problem: How many hundreds, tens, and ones are in 192?

  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, 2 ones

Worked Example 8

Problem: How many hundreds, tens, and ones are in 146?

  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, 6 ones

Worked Example 9

Problem: How many hundreds, tens, and ones are in 192?

  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, 2 ones

Worked Example 10

Problem: How many hundreds, tens, and ones are in 151?

  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, 1 ones

2.8 Place-value charts

Place-value charts 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 14 to make a simple example about Place-value charts.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Place-value charts.

Worked Example 2

Problem: Use 4 and 16 to make a simple example about Place-value charts.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Place-value charts.

Worked Example 3

Problem: Use 15 and 1 to make a simple example about Place-value charts.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Place-value charts.

Worked Example 4

Problem: Use 7 and 4 to make a simple example about Place-value charts.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Place-value charts.

Worked Example 5

Problem: Use 17 and 16 to make a simple example about Place-value charts.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Place-value charts.

Worked Example 6

Problem: Use 4 and 8 to make a simple example about Place-value charts.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Place-value charts.

Worked Example 7

Problem: Use 7 and 1 to make a simple example about Place-value charts.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Place-value charts.

Worked Example 8

Problem: Use 19 and 9 to make a simple example about Place-value charts.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Place-value charts.

Worked Example 9

Problem: Use 13 and 19 to make a simple example about Place-value charts.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Place-value charts.

Worked Example 10

Problem: Use 5 and 3 to make a simple example about Place-value charts.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Place-value charts.

2.9 Trading ten ones for one ten

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 128?

  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, 8 ones

Worked Example 2

Problem: How many hundreds, tens, and ones are in 108?

  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, 8 ones

Worked Example 3

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 4

Problem: How many hundreds, tens, and ones are in 144?

  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, 4 ones

Worked Example 5

Problem: How many hundreds, tens, and ones are in 115?

  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, 5 ones

Worked Example 6

Problem: How many hundreds, tens, and ones are in 147?

  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, 7 ones

Worked Example 7

Problem: How many hundreds, tens, and ones are in 152?

  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, 2 ones

Worked Example 8

Problem: How many hundreds, tens, and ones are in 109?

  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, 9 ones

Worked Example 9

Problem: How many hundreds, tens, and ones are in 165?

  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, 5 ones

Worked Example 10

Problem: How many hundreds, tens, and ones are in 134?

  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, 4 ones

2.10 Trading ten tens for one hundred

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 115?

  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, 5 ones

Worked Example 2

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 3

Problem: How many hundreds, tens, and ones are in 129?

  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, 9 ones

Worked Example 4

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 5

Problem: How many hundreds, tens, and ones are in 161?

  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, 1 ones

Worked Example 6

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 7

Problem: How many hundreds, tens, and ones are in 132?

  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, 2 ones

Worked Example 8

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 9

Problem: How many hundreds, tens, and ones are in 192?

  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, 2 ones

Worked Example 10

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

2.11 Zero as a place holder

Zero as a place holder 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 4 to make a simple example about Zero as a place holder.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Zero as a place holder.

Worked Example 2

Problem: Use 7 and 12 to make a simple example about Zero as a place holder.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Zero as a place holder.

Worked Example 3

Problem: Use 14 and 7 to make a simple example about Zero as a place holder.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Zero as a place holder.

Worked Example 4

Problem: Use 3 and 13 to make a simple example about Zero as a place holder.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Zero as a place holder.

Worked Example 5

Problem: Use 12 and 7 to make a simple example about Zero as a place holder.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Zero as a place holder.

Worked Example 6

Problem: Use 19 and 16 to make a simple example about Zero as a place holder.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Zero as a place holder.

Worked Example 7

Problem: Use 9 and 11 to make a simple example about Zero as a place holder.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Zero as a place holder.

Worked Example 8

Problem: Use 17 and 5 to make a simple example about Zero as a place holder.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Zero as a place holder.

Worked Example 9

Problem: Use 15 and 10 to make a simple example about Zero as a place holder.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Zero as a place holder.

Worked Example 10

Problem: Use 9 and 11 to make a simple example about Zero as a place holder.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Zero as a place holder.

2.12 Checking place-value representations

Checking place-value representations 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 18 and 7 to make a simple example about Checking place-value representations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Checking place-value representations.

Worked Example 2

Problem: Use 11 and 1 to make a simple example about Checking place-value representations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Checking place-value representations.

Worked Example 3

Problem: Use 10 and 18 to make a simple example about Checking place-value representations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Checking place-value representations.

Worked Example 4

Problem: Use 2 and 13 to make a simple example about Checking place-value representations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Checking place-value representations.

Worked Example 5

Problem: Use 10 and 15 to make a simple example about Checking place-value representations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Checking place-value representations.

Worked Example 6

Problem: Use 12 and 14 to make a simple example about Checking place-value representations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Checking place-value representations.

Worked Example 7

Problem: Use 7 and 20 to make a simple example about Checking place-value representations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Checking place-value representations.

Worked Example 8

Problem: Use 9 and 18 to make a simple example about Checking place-value representations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Checking place-value representations.

Worked Example 9

Problem: Use 13 and 18 to make a simple example about Checking place-value representations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Checking place-value representations.

Worked Example 10

Problem: Use 14 and 4 to make a simple example about Checking place-value representations.

  1. Recall the topic meaning.
  2. Use objects, a drawing, or a number sentence.
  3. 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 Checking place-value representations.

30 Review Questions and Answers

Q1. What should a Grade 2 learner understand about Hundreds place?

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 Tens place?

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 Ones place?

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

Q4. What should a Grade 2 learner understand about Building numbers with hundreds tens and ones?

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

Q5. What should a Grade 2 learner understand about Reading place-value models?

Answer: Reading place-value models is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q6. What should a Grade 2 learner understand about Writing place-value models as numerals?

Answer: Writing place-value models as numerals 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 Value of a digit?

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

Q8. What should a Grade 2 learner understand about Place-value charts?

Answer: Place-value charts 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 Trading ten ones for one ten?

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 Trading ten tens for one hundred?

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 Zero as a place holder?

Answer: Zero as a place holder is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q12. What should a Grade 2 learner understand about Checking place-value representations?

Answer: Checking place-value representations is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q13. What should a Grade 2 learner understand about Hundreds place?

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 Tens place?

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 Ones place?

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

Q16. What should a Grade 2 learner understand about Building numbers with hundreds tens and ones?

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

Q17. What should a Grade 2 learner understand about Reading place-value models?

Answer: Reading place-value models is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q18. What should a Grade 2 learner understand about Writing place-value models as numerals?

Answer: Writing place-value models as numerals 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 Value of a digit?

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

Q20. What should a Grade 2 learner understand about Place-value charts?

Answer: Place-value charts 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 Trading ten ones for one ten?

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 Trading ten tens for one hundred?

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 Zero as a place holder?

Answer: Zero as a place holder is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q24. What should a Grade 2 learner understand about Checking place-value representations?

Answer: Checking place-value representations is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q25. What should a Grade 2 learner understand about Hundreds place?

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 Tens place?

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 Ones place?

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

Q28. What should a Grade 2 learner understand about Building numbers with hundreds tens and ones?

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

Q29. What should a Grade 2 learner understand about Reading place-value models?

Answer: Reading place-value models is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.

Q30. What should a Grade 2 learner understand about Writing place-value models as numerals?

Answer: Writing place-value models as numerals is a Grade 2 math idea best learned with simple numbers, objects, drawings, and clear words.