Adding Integers 3

What is the additive inverse of -9?

• 9

• 0

• -9

• -1

Will the sum of (-8) + 20 be a positive, negative, or zero?

• positive

• negative

• zero

Will the sum of 50 + (-50) be a positive, negative, or zero?

• positive

• negative

• zero

Will the sum of (-10) + (-18) be a positive, negative, or zero?

• positive

• negative

• zero

The sum of an integer and its additive inverse will always be

• positive

• negative

• zero

• neither

What problem is modeled on the number line above?

• 5 + 4 = -1

• -5 + 4 = -1

• 5 + (-4) = -1

• -1 + (-4) = -5

What number is missing in the equation modeled by the number line? -2 + _______ = -7

• 5

• 7

• -5

• -7

What number was added to 4 for the model to end on -2?

• -6

• 6

• -4

• 4

Solve.

9 + 6 + (-6)

• -9

• 21

• -21

• 9

Solve.

9 + (-17) + (-9)

• 9

• -9

• -17

• 17