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©Curriculum Associates, LLC Copying is not permitted.130 Lesson 13 Add Three-Digit Numbers

Solve.

Luke played piano for 58 minutes yesterday. He played piano for 27 minutes today.

4 Write the tens and ones.

58 5 1

27 5 1

5 How many total minutes did Luke play piano?

Show your work.

Answer: minutes

Ms. Patel has 29 blue pens, 17 red pens, and 35 red crayons.

6 How many red pens and red crayons does Ms. Patel have?

Show your work.

Answer:

7 How many blue pens and red pens does Ms. Patel have?

Show your work.

Answer:

130

Possible work: 50 1 20 1 8 1 7 5 70 + 155 85

Possible work: 17 5 10 1 735 5 30 1 5 40 1 12 5 52

52 red pens and red crayons

46 blue pens and red pens

Possible work: 29 5 20 1 9 17 5 10 1 7 30 1 16 5 46

50

20

85

8

7

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©Curriculum Associates, LLC Copying is not permitted. 129Lesson 13 Add Three-Digit Numbers

Name:

Lesson 13

Add Three-Digit Numbers

Prerequisite: Add Two-Digit Numbers

Study the example showing how to add two-digit numbers. Then solve Problems 1–7.

There are 48 red grapes and 24 green grapes in a salad.

1 Write the tens and ones.

48 5 1

24 5 1

2 Add the tens. Then add the ones.

1 5 60

1 5 12

3 Show how to fi nd how many grapes there are in all.

Example

Find 27 1 16.

You can add tens and add ones.

27 5 20 1 716 5 10 1 6

30 1 13 5 43

1 5

7 ones2 tens 6 ones1 ten 13 ones3 tens

129

40

20

8

4

40

8

60 1 12 5 72; There are 72 grapes in all.

20

4

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Practice Lesson 13 Add Three-D

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©Curriculum Associates, LLC Copying is not permitted.132 Lesson 13 Add Three-Digit Numbers

Solve.

Paul has 547 beads. Amy has 219 beads.

4 Fill in the boxes.

547

1 219

500 1 40 1 7

1 1

1 1

5 Add hundreds, tens, and ones to solve.

Show your work.

beads

A zoo has 146 birds and 628 bugs. It also has 258 snakes and 338 fish.

6 How many birds and bugs are there?

Show your work.

1461 628

Answer:

7 How many snakes and fi sh are there?

Show your work.

258 1 338

Answer:

132

Possible work: 200 1 50 1 81 300 1 30 1 8 500 1 80 1 16 5 596

Possible work: 100 1 40 1 61 600 1 20 1 8 700 1 60 1 14 5 774

Possible work: 16 5 10 1 6700 1 50 1 10 1 6 5 766

596 snakes and fish

774 birds and bugs

766

700

200

50

10

16

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©Curriculum Associates, LLC Copying is not permitted. 131Lesson 13 Add Three-Digit Numbers

Name: Lesson 13

Add Hundreds, Tens, and Ones

Study the example showing two ways to add three-digit numbers. Then solve Problems 1–7.

There are 416 oak trees and 238 pine trees in the park.

1 Fill in the boxes to help you fi nd the total.

4161 238

400 1 10 1 6200 1 30 1 8

1 1 14

2 14 ones 5 ten 1 ones

3 How many trees are there altogether?

trees

Example

Solve 227 1 135.

You can make a quick drawing.

You can break apart the addends.

2271 135

200 1 20 1 7100 1 30 1 5 300 1 50 1 12

227 1 135 5 362

227

135

3 hundreds 1 5 tens 1 12 ones

131

1

600 40

4

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©Curriculum Associates, LLC Copying is not permitted.134 Lesson 13 Add Three-Digit Numbers

Solve.

3 Show how to fi nd 579 1 358.

4 Show how you can add 157 and 296.

5 Use the numbers in the box. Find the greatest sum that you can. Then fi nd the smallest sum. Tell how you got your answer.

268 275 242 259

134

Possible answer: I used the two greatest numbers to find the greatest sum. I used

the two smallest numbers to find the smallest sum.

Greatest: 200 1 60 1 8200 1 70 1 5400 1 130 1 13 5 543

Smallest: 200 1 40 1 2200 1 50 1 9400 1 90 1 11 5 501

Possible answer: 5791 358

800120

17

800 1 120 1 17 5 937

Possible answer: 1571 296

300140

13

300 1 140 1 13 5 453

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©Curriculum Associates, LLC Copying is not permitted. 133Lesson 13 Add Three-Digit Numbers

Name: Lesson 13

Add Three-Digit Numbers

Study the example showing how to add hundreds, tens, and ones. Then solve Problems 1–5.

Mina’s class collects 368 cans to recycle. Willa’s class collects 254 cans.

1 Fill in the boxes to show how you can add hundreds, then tens, then ones.

2 How many cans do the classes collect altogether?

1 110 1 5

Example

Solve 346 1 487.

You can add hundreds, then tens, then ones.

3461 487

700120

13

300 1 40040 1 806 1 7

700 1 120 1 13 5 833

You can add ones, then tens, then hundreds.

3461 487

13120700

6 1 740 1 80300 1 400

13 1 120 1 700 5 833

3681 254

110

133

500

12

500 12 622

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Practice Lesson 13 Add Three-D

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©Curriculum Associates, LLC Copying is not permitted.136 Lesson 13 Add Three-Digit Numbers

5 Elsa writes 500 1 70 1 6. What two-digit numbers could she be adding? Circle the correct answer.

A 371 1 275 C 403 1 273

B 145 1 421 D 252 1 324

Solve.

3 Find 426 1 315. Write the missing numbers on the open number line below.

426 726

10

741

4 Macy needs to double the number 439. What addition problem can she use? Circle all the correct answers.

A 18 1 60 1 800

B 400 1 60 1 18

C 800 1 60 1 10 1 8

D 800 1 60 1 90

Which two digits should I add to get 500?

What are the two numbers in the addition problem?

What number do you add to 426 to get to 726?

136

300

736

5

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©Curriculum Associates, LLC Copying is not permitted. 135Lesson 13 Add Three-Digit Numbers

Name:

Add Three-Digit Numbers

Solve the problems.

2 A fl ower store sells 285 roses in the morning and 260 roses in the afternoon. Which addition problem shows how many roses the store sells in all? Circle the correct answer.

A 200 1 140 1 50

B 200 1 140 1 5

C 400 1 140 1 5

D 400 1 140 1 50

Lance chose B. This is wrong. How did Lance get his answer?

1 Charlie has 378 play coins. Ting has 147. How many coins do Charlie and Ting have in all?

Show your work.

Answer:

How many hundreds, tens, and ones does each number have?

Will you add hundreds or ones first?

Lesson 13

135

Possible answer: Lance forgot to add the

hundreds. He should have added 200 1 200.

525 coins

Possible work:

3781 147

15110400

525

C

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