The Real Number System and Number Properties

Identify the property
a + b = b + a

• Identity of addtion
• commutative of addition
• associative of addition
• symmetric

Identify the property

a + 0 = a

• identity property of addition

• identity property of multiplication

• inverse property of addition

• multiplication property of zero

Identify the property

(a ⋅ b) ⋅ c = (c ⋅ b) ⋅ a

• commutative property of multiplication

• identity property of multiplication

• inverse property of multiplication

• associative property of multiplication

Pick the answer that is an example of the commutative property of multiplication

• b + c + a = a + b + c
• a(b + c) = ab + ac
• a ⋅ b = b⋅ a
• a ⋅ 1 = a

Pick the answer that is an example of the identity property of addtion

• a + (-a) = 0
• 1 + 1 = 2
• a + 0 = a
• a + b = b + a

Identify the property

a(b + c) = ab + ac

• Associative property of addition

• Distributive property

• Commutative property of addition

• Inverse property

If you multiply a number and its multiplicative inverse, what do you get?

• 0

• 1

• Not enough information

• None of these

What is the additive inverse of 2/3?

• -2/3

• 3/2

• 2/3

• -3/2

To solve this equation, which property would be useful:
x+5=17

• Multiplicative Inverse
• Additive Identity
• Multiplicative Identity
• Additive inverse

Any number you multiply by zero is equal to zero.

• True

• False