Topic 3

Associative Grouping Property

100

Solve 6 x 4 by breaking the 6 into 5 and 1.

5 x 4 = 20

1 x 4 = 4

20 +4 = 24

200

Solve 7 x 3 by breaking apart the 3.

7 x 2 = 14

7 x 1 = 7

14 +7 = 21

300

Solve 4 x 7 by breaking apart the 4.

2 x 7 = 14

2 x 7 = 14

14 +14 = 28 

Or

3 x 7 = 21

1 x 7 = 7

21 + 7 = 28

3 and 4

100

3 x 4 = ?

3 x 4 = 12

200

4 x 8 = ?

4 x 8 = 32

300

Mr. Dooher cooked 4 packages of bacon. Each package had 9 pieces. How many pieces did he cook?

4 x 9 = 36

6 and 7

100

6 x 7 =?

6 x 7 = 42

200

7 x 8 = ?

7 x 8 = 56

300

How many days are there in 4 weeks?

4 x 7 = 28

8

100

What did 8 x 8 buy at the store?

Nintendo 64

200

8 x 3?

8 x 3 = 24

300

Mary made 8 goodie bags. Each bag had 6 pieces of candy. How many pieces did each bag have?

8 x 6 = 48

3 as a factor

100

2 x 3 x4 = ?

2 x 3 x 4 = 24

200

3 x 6 x 2 = ?

3 x 6 x 2 = 36

300

4 x 2 x 0 = ?

4 x 2 x 0 = 0