Adding and Subtracting Integers

10 + (-4) = ?

• -6
• 6
• 14
• -14

Bob lost 5 points on page one of his math test and he lost 9 points on page two of his math test.  Which equation best describes Bob progress on his math test?

• 5 + 9 = 14
• -5 + -9 = -4
• -5 + -9 = -14
• 5 + -9 = -4

What is the additive inverse of -5?

• -5
• 0
• 5
• -0

When you add opposites, what do you get?

• 0
• A negative number
• Attraction
• You cannot add opposites

-8 + 13

• 21
• -21
• 5
• -5

-22 + (-9)

• -11
• -31
• 11
• 31

2 + (-21) 

• 19
• -19
• -23
• 23

-8 - (-4) =

• 12
• -12
• 4
• -4

The temperature on a cold winter day starts out at 10 degrees, but it drops rapidly 24 degrees due to a strong cold front moving in.  What is the current temperature?

• 14
• 34
• -14
• -34

-8 - 8 =

• 16
• 0
• -16
• 9