Unit 3 Multiplication And Division Worksheet Page 16
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40Another way to multiply is to add groups to facts you know.
➤ Use facts with 2 to multiply by 3.
First, multiply by 2.
Then, add another group.
To find 3
7:
Think:
2
7
14
14
7
21
1
7
7
So, 3
7
21
➤ Use facts with 5 to multiply by 6.
First, multiply by 5.
Then, add another group.
To find 6
7:
Think:
5
7
35
35
7
42
1
7
7
So, 6
7
42
➤ Use facts with 5 and 2 to multiply by 7.
Break the 7 into a fact with 5 and a fact with 2.
To find 7
8:
Think:
5
8
40
40
16
56
2
8
16
So, 7
8
56
95
Unit 3 Lesson 4
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