Subtracting Integers & Rational Numbers

Sub. Integers

100

12 - 18

-6

200

-20 - 24

-44

300

-16 - (-27)

11

400

58 - (-39)

97

500

-24 - (-18) - 11

-5

Sub. Decimals

100

23.1 - (-14.7)

37.8

200

-73.7 - (-2.09)

-71.61

300

-56.61 - (-48.83)

-7.78

400

-99.9 - 75.9

-175.8

500

26.6 - 2.24 - (-19.12)

43.48

Sub. Fractions

100

-8/11 - 2/11

-10/11

200

-5/9 - (-10/9)

5/9

300

9/8 - 1/2

5/8

400

-7/5 - 7/3

14/15

500

1/6 - (-4/6) - (-5/6)

10/6 or 1 2/3

Sub. Word Problems

100

You take 6 steps forward and 8 steps backward. How many steps have you taken?

-2 (2 steps backwards)

200

Water freezes at 32 degrees Fahrenheit. The melting point of oxygen is -173 degrees Fahrenheit. What is the difference between these two temperatures?

205 degrees Fahrenheit

300

It was -13 degrees in Kershaw and 71 degrees in Charlotte today. How many degrees warmer is it in Charlotte?

84

400

The temperature in Alaska is -6 degrees today. The weather station has reported that the temperature will drop by 15 degrees overnight. What will the new temperature be?

-21

500

A submarine is situated at 450ft below sea level and sinks 75ft. What is the new position of the submarine?

-525ft