Subtracting Negatives

Review of Adding and subtracting integers

Adding Inverses

Adding opposites you always gets ZERO

Multiple Choice

Which of the following equals ZERO?

• 10 + 10

• -10 + 10

• -10 + (-10)

• 10 + 0

Adding TWO Negative Numbers

add them, and it stays negative

Multiple Choice

What is -2 + (-4) =

• 6

• -6

• 2

• -2

Multiple Choice

What is -10 + -4 =

• -14

• 14

• 6

• -6

Adding Integers with Different Signs

subtract them, keep the sign of the larger number

Multiple Choice

-5 + 1

• 4

• -4

• 6

• -6

Multiple Choice

7 + (-5)

• 2

• -2

• 12

• -12

Multiple Choice

-3 + 7

• 10

• -4

• 4

• -10

Multiple Choice

Subtracting is the same as adding the _____________.

• numbers

• additive inverse (opposite)

• multiplying

• dividing

Multiple Choice

What is 16- (-9) ?

• -7

• 11

• 15

• 25

Multiple Choice

17 - 22 =

• 6

• -5

• 39

• -39

Multiple Choice

-11 - (-4)

• 7

• -15

• -7

• 25

Multiple Choice

28 - (-14) =

• 18

• -14

• -42

• 42

Multiple Choice

Which subtraction expression does the number line model show?

• -13 + 4

• -4 - 13

• -4 - 9

• -4 + 9

Multiple Choice

If a - b = 7, what is also true?

• a + b = -7

• a + (-b) = 7

• -a - b = 7

• b - a = 7

Multiple Select

Select all the sums that are positive.

• (-5) + (-2)

• 5 + (-2)

• -3 + 4

• 0 + (-3)

• -2 - (-4)

Multiple Choice

The temperature rises 15 degrees Fahrenheit (˚F) and then drops by 8˚F. If the temperature started at −11˚F, what temperature change would be required to bring the temperature to 0˚F?

• an increase of 4˚F

• a decrease of 4˚F

• a decrease of 19˚F

• an increase of 19˚F

Open Ended

Describe and correct the error in finding the difference 7 - (-12).