Question

3) Which property is used in the following: 4 x (5 + 7) = 4 x 5 + 4x7

A. Associative Property
C. Commutative Property
B. None of the above
D. Distributive Property
4) Which of the following is an example of Commutative Property of Addition:
A. (8 + 6 ) + 4 = 8 + (6 +4)
C. 5 x 1 = 5
B. 2 + 8 = 8 + 2
D. 9 + 3 = 7 + 9
5) Which equation shows the Multiplicative Identity Property?
A. 4 X 1 = 4
C. 4 (5 + 1) = 20 + 4
B. 4 x 4 x 4 = 3 x 4
D. (4 + 1) + 8 = 4 + ( 1 + 8 )
6) Use the distributive to simplify: 3 ( x + 3) - X + 5

Please Help

Answer 1

3) D

4) B

5) A

6) 2 (x + 7)

Explanation:

3)

D. Distributive Property

The distributive property of multiplication over addition can be used when you multiply a number by a sum.

4)

B. 2 + 8 = 8 + 2

The word "commutative" comes from "commute" or "move around", so the Commutative Property is the one that refers to moving stuff around.

5)

A. 4 x 1 = 4

The "Multiplicative Identity" is 1, because multiplying a number by 1 leaves it unchanged: a × 1 = 1 × a = a.

6)

3 ( x + 3) - X + 5

3x + 9 - x + 5

2x + 14

2 (x + 7)