Adding and Subtracting Negative Numbers Counters

Which addition equation goes with this image?

• (+3) + (-3) = 0

• (-6) + (+3) = (-3)

• (+6) + (-3) = (+9)

• (+6) + (-3) = (+3)

What can be added to these counters to make zero?

• One red counter

• Two yellow counters

• Two yellow counters and one red counter

• Two red counters

Use the model to solve the equation.

• 1

• 9

• -1

• -9

Which equation is represented by the model below?

• -5 + 3 = -2

• 5 + (-3) = 2

• 5 + 3 = 8

• -5 + (-3) = -8

(-43) + (-44)

• -87

• 87

• 1

• -1

What is the result of (-4) + (-5)?

• 9

• 20

• (-20)

• (-9)

-22 + (-9)

• -11

• -31

• 11

• 31

Solve the problem.
-2 + (-5)

• 7

• -7

• -3

• 3

-5 + -4

• 1

• -1

• 9

• -9

-3 + -8

• 11

• 5

• -11

• -5