Positive and Negative Numbers Addition

When we add a positive integer and a negative integer, we have to perform subtraction on the absolute value of each integer, then copy the symbol of the _(biggger or smaller)_ number

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

• Additive identity of a

• additive inverse of a

• Multiplicative identity of a

• None of these

The additive inverse of -6/7

• 6/7

• -7/6

• 7/6

• 1

Which addition equation matches the problem modeled below? (Yellow is positive and Red is negative)

• -2 + -4 = -6

• 2 + -4 = -2

• 4 + 2 = 6

• -7 + 4 = -3
• 7 + (-4) = 3
• 7 - 4 = 11
• 7 + (-4) = -11

Find the sum of the integer model shown.

• -5 + 3 = -2

• 5 + (-3) = 2

• 5 + 3 = 8

• -5 + (-3) = -8

Which equation does the model show?

• 5 + 2 = 7

• -5 + 2 = 3

• 5 + (-2) = 3

• -5 + 2 = -7

What is a zero pair? 

• Two negatives

• Two positives

• One negative, one positive

Which expressions represents the 2-color counters shown in the image?

• -4 + 5

• 4 + (-5)

• -4 + (-5)

• -5 + 4

When adding negative numbers on a number line, you move to the ____________.

• Right

• Left