Subtracting Negatives

Review of Adding and subtracting integers

Adding Inverses

Adding opposites you always gets ZERO

Fill in the Blanks

What is the Inverse of -6?

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

Fill in the Blanks

-8 + ?? = -10

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

Fill in the Blanks

The highest elevation in Mexico is 5700 meters, on Pico de Orizaba. The lowest elevation in Mexico is −10 meters, in Laguna Salada. Find the range of elevations in Mexico.

Fill in the Blanks

Hank is working in a silver mine 10 feet

below the surface. He descends until he

reaches a point 57 feet below the surface.

How many feet does Hank descend?

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

Fill in the Blanks

Mt. Everest, the highest elevation in Asia, is 29,028 feet above sea level. The Dead Sea, the lowest elevation, is 1,312 feet below sea level. What is the difference between these two elevations?

Open Ended

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