Properties of Numbers Addition and Subtraction

If a + (-a )= 0; then ( -a ) is called

• Additive identity of a

• additive inverse of a

• Multiplicative identity of a

• None of these

The sum of 2 rational numbers is always a rational number ,this is indicator of which propery

• commutative

• distributive

• closure

• associative

0 is called:

• Identity element for the multiplication of the rational numbers

• Identity element for the addition of rational numbers

• Identity element for the subtraction of rational numbers

• None of these

What properties, the following expressions show?

• Commutative property of addition of Rational numbers

• Closure property of addition of Rational numbers

• Associative property of addition of Rational numbers

• Distributive property of addition of Rational numbers

What is the additive identity of rational numbers?

• 0

• 1

• -1

• same number

The additive inverse of -6/7

• 6/7

• -7/6

• 7/6

• 1

Identify the property
a + b = b + a

• Identity of addtion

• commutative of addition

• associative of addition

• symmetric

Pick the answer that is an example of the identity property of addition.

• a + (-a) = 0

• 1 + 1 = 2

• a + 0 = a

• a + b = b + a

Identify the property
a(b + c) = ab + ac

• Associative of addtion

• Distributive

• Commutative of addition

• Inverse

Identify the property 
a + (-a) = 0

• Inverse of addition 

• Identity of addtion

• associative of addition 

• symmetric