Subtracting Integers on # Line and Review!

-15 - 5

• 20

• 10

• -20

• -10

3 - 7

• -4

• 10

• 4

• -10

37 - (-3)

• 34

• -34

• -40

• 40

-12 - (-2)

• -10

• -14

• 14

• 10

-151 - 4

• 147

• 155

• -147

• -155

What tells you if you need to reverse on a number line when adding or subtracting?

• If the second integer is positive

• If the second integer is negative

• Never reverse!

• If it's subtracting only

32 - (-6)

• 38

• 26

• -38

• -26

40 + (-82)

• -42

• 122

• 42

• -122

Find the sum: -15 + -16

• 31

• 1

• -31

• -1

A diver was 90 feet below sea level when he descended 17 more feet. What integer represents the diver's final location?

• 117 ft

• -117 ft

• 77 ft

• -77 ft