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Reteach and Skills Practice Workbook

Reteach and Skills Practice Workbook

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7–6<br />

Name<br />

<strong>Reteach</strong><br />

Date<br />

4NS3.0, 4MR2.1<br />

Multiply Multi–Digit Numbers<br />

Multiply by following steps.<br />

Find 22 × 6.<br />

Step 1<br />

Step 2<br />

Chapter Resources<br />

Think in terms of tens <strong>and</strong> ones.<br />

22 is 2 tens <strong>and</strong> 2 ones.<br />

Multiply the ones.<br />

Tens<br />

2<br />

Ones<br />

2<br />

Tens<br />

2<br />

Ones<br />

2<br />

1<br />

22<br />

× 6<br />

6<br />

× 2<br />

12<br />

Regroup 12 ones as 1<br />

ten + 2 ones. Be sure<br />

to put the 1 in the tens<br />

column above the two.<br />

6<br />

Step 3<br />

Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.<br />

Multiply the tens.<br />

1<br />

22<br />

× 6<br />

132<br />

Multiply.<br />

1. Tens<br />

3<br />

Tens<br />

2<br />

Ones<br />

6 × 2 tens = 12 tens. Add the regrouped ten.<br />

12 tens + 1 ten = 13 tens.<br />

Regroup 13 tens as 1 hundred <strong>and</strong> 3 tens.<br />

Ones<br />

1<br />

→<br />

7<br />

2. Tens<br />

3<br />

Ones<br />

5<br />

→<br />

6<br />

2<br />

6<br />

Grade 4 129 Chapter 7

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