Practice with Expressions

Which property of addition is used in the following ?

(7 + 4) + 2 = 7 + (4 + 2)

• Identity Property
• Commutative Property
• Associative Property
• Distributive Property

Which property is used in the following?

9 x (8 + 3) = 9 x 8 + 9 x 3

• Associative Property
• Distributive Property
• None of the above
• Commutative Property

Which equation shows the Commutative Property of Multiplication ?

• 7 x 3 = 7 + 7 + 7
• 8 x 1 = 8
• 3x6 - 4x6 = (3-4)x6
• 5 x 2 = 2 x 5

-8(6x + 3) 

• 48X+3
• -48X-3
• 14x+3
• -48x-24

Distribute

2(x+3)

• 2x+6

• 2x+3

• 2x+5

Distribute

3(x+4)

• 3x+7

• 3x+4

• 3x+12

2(4X-7)

• 8x-14
• 8x-7
• 6x+7
• 8x+14

-8(6x + 3) 

• 48X+3
• -48X-3
• 14x+3
• -48x-24

• 20

• 12

• 2

• -6

• Division error

• Subtraction was done first when division should have been done first

• Division was done first when subtraction should have been done first

• Subtraction error