Subtraction With Counters

-3 - 2

• -1

• -5

• 1

• 6

-9 + (-5)

• -14

• 14

• -4

The temperature at the beginning of the day was 6 degrees F. The temperature dropped 9 degrees F by the end of the day. What was the temperature at the end of the day?

• 3

• -3

• 15

• -15

Joy earned 13 points in her first round and -21 points in her second turn. What was her score after 2 turns?

• 34

• 8

• -34

• -8

• -7 + 4 = -3
• 7 + (-4) = 3
• 7 - 4 = 11
• 7 + (-4) = -11

What number does this represent?

• 6

• -6

• 2

• -2

How many Zero Pairs are in the model?

• 8

• 4

• -1

• 9

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)

5 - (-12)

• -7

• 7

• 17

• -17