Adding and Subtracting Rational Numbers

Front

3 + -7

Back

-4

Front

-14 + (-3)

Back

-17

Front

-22 + (-9)

Back

-31

Front

A diver was 40 feet below the surface of the water. A fisherman was casting off a dock right above the diver that was 12 feet above the surface of the water. How far apart are the diver and the fisherman?

Back

52 feet

Front

At 2pm, the temperature was 15 degrees. By midnight, the temperature dropped by 30 degrees. What is the temperature at midnight?

Back

-15 degrees

Front

45 + (-12)

Back

33

Front

-6.5 + (-0.5)

Back

-7

Front

34.5 + (-7)

Back

27.5

Front

-7.8 + (-0.8)

Back

-8.6

Front

⅗ + (−⅕) =

Back

⅖