Directions: Give the missing number/s in the equations below.

Answer:

1) 9 x 14=14 x 9

2) (11 x 5) x 10=11 x (5 x 10)

3) 3 x (12 + 5)=(3 x 12) + (3 x 5)

4) 12 x 11=33 x 4

5) 26 + 44 + 20=65 + 25

Solution:

1) 9 x 14=14 x 9

126=126

2) (11 x 5) x 10=11 x (5 x 10)

(55) x 10=11 x (50)

550=550

3) 3 x (12 + 5)=(3 x 12) + (3 x 5)

3 x (17)=(36) + (15)

51=51

4) 12 x 11=33 x 4

132=132

5) 26 + 44 + 20=65 + 25

(70) + 20=90

90=90

Directions: Find the missing terms in the equations below.

Answer:

1) 5 + (12 + 23)=(5 + 12) + 23

2) 15 x 7=7 x 15

3) 7 x (14 + 8)=(7 x 14) + (7 x 8)

4) 45 + 34 + 26=30 + 75

5) (15 x 5) x 4=15 x (5 x 4)

Solution:

1) 5 + (12 + 23)=(5 + 12) + 23

5 + (35)=(17) + 23

40=40

2) 15 x 7=7 x 15

105=105

3) 7 x (14 + 8)=(7 x 14) + (7 x 8)

7 x (22)=(98) + (56)

154=154

4) 45 + 34 + 26=30 + 75

(79) + 26=105

105=105

5) (15 x 5) x 4=15 x (5 x 4)

(75) x 4=15 x (20)

300=300

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