Adding and Subtracting Integers Skills Review

Use the counters to find the sum of the integers. 

• -5
• -7
• 5
• 7

-20+(-11)

• 31
• 9
• -9
• -31

(-9) + 9

• 18
• -18
• 0
• 81

(- 9) + 7

• -2
• 2
• 16
• -16

7 + (-14)

• 7
• 21
• -21
• -7

Rewrite the following subtraction problem as addition:     -2 - (-6)

• -2 + 6
• -2 + (-6)
• 2 - (-6)
• 2 + 6

Rewrite the following subtraction problem as addition:   -1 - 7

• -1 + 7
• 1 + 7
• -1 + (-7)
• 1 + (-7)

-2 + 4 

• -2
• 2
• 0
• -4

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

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