Add and Subtract Positive and Negative Integers on a Number Line

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

• positive

• negative

• zero

• neither

Solve.

9 + 6 + (-6)

• -9

• 21

• -21

• 9

Solve.

9 + (-17) + (-9)

• 9

• -9

• -17

• 17

When adding integers with the same sign, you must ________ the absolute value of each integer and keep the sign.

• add

• subtract

• multiply

• divide

When adding integers with different signs, you must __________ the absolute value of each integer and keep the sign of the integer with the higher value.

• add

• subtract

• multiply

• divide

Add.

-4 + (-6)

• 10

• 2

• -2

• -10

Add.

14 + (-5)

• 19

• -19

• 9

• -9

Add.

18 + (-18)

• 0

• 36

• -36

• 10

Your bank account has a balance of -$8. How much do you need to add for your balance to be 0?

• 10

• 8

• -8

• 16

Add.

-13 + 9

• 4

• -4

• 22

• -22