Subtracting Integers

Front

-1 - 5 =

Back

-6

Front

6 - 2 =

Back

4

Front

6 - 2 =

Back

4

Front

-4 - (-9) =

Back

5

Front

0 - (-1) =

Back

1

Front

What is the rule for subtracting integers?

Back

Change to addition and use the opposite of the second number.

Front

Convert -9 -(-5) to an addition problem.

Back

-9 + 5

Front

Convert 12 - 20 into an addition problem.

Back

12 + (-20)

Front

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?

Back

-14

Front

-8 - (-6) =

Back

-2