Name
Chapter 10, Lesson 1
Reteach
Date
Multiply 2-Digit Numbers by
1-Digit Numbers
CA Standard
NS 3.0
Find 3 × 16.
Step 1 Show 3 groups of
16 with base-ten blocks.
Step 2 If the number of
ones blocks is 10 or more,
combine ones to make
more tens.
Step 3 Write the
complete multiplication
sentence.
Solution: 3 × 16 = 48
10
Tell what multiplication sentence the blocks show.
1.
2.
Use base-ten blocks to find the product.
3.
2 × 26
4.
3 × 26
5.
3 × 18
6.
4 × 23
7.
3 × 23
8.
5 × 13
9.
2 × 35
10.
3 × 24
11.
4 × 14
Writing Math You have only ones blocks. How can you use
them to multiply 3 × 12?
Reteach
Use with text pages 214–215.
Copyright © Houghton Mifflin Company. All rights reserved.
73744_C10L1_RET_CLN2.indd 1
7/12/07 8:57:19 PM