Rational Number Operations

Adding Rational Numbers

100

-37 + (-12)

What is (-49)?

200

-34.87 + 16.98

What is (-17.89)?

300

1/4+(-3/5)

What is

-7/20

400

3 1/5 + (-3 3/4)

What is (-11/20)?

500

45/4 + -32/3 

What is 7/12?

Subtracting Rational Numbers

100

-18 - 37

What is (-55)?

200

-28.39 - (-74.21)

What is 45.82?

300

-3/8 - 1/5 = ?

What is -23/40?

400

-742.12 - 89.35

What is -831.47?

500

(-7 1/2) - (6 1/4) 

What is – 55/4 = –13 3/4 ?

Multiplying Rational Numbers

100

(-12) x (-4)

What is 48?

200

(12.6) x (-3.5)

What is (-44.1)?

300

(3/4) x (-7/6)

What is (-7/8)?

400

(-6/15) x (3/4) 

What is -3/10?

500

(-5/2) x (7/6) x (-8/3)

What is 70/9 or 7 7/9?

Dividing Rational Numbers

100

-51 divided by 3

What is (-17)?

200

-25 divided by (-2.5)

What is 10?

300

15/4 divided by (-10/3)

What is (-9/8) or (-1 1/8)?

400

(- 3 1/2) divided by 3/4

What is (-14/3) or (-4 2/3)?

500

(-1/10) divided by (-6/7)

What is 7/60?

Word Problems:)

100

A diver dove 35 feet below sea level. He then swam another 17 feet down. How many feet had he traveled?

What is (-52) feet or 52 feet below sea level?

200

Sarah bought three shirts that each cost $29.85. How much did she pay in all?

What is $89.55?

300

A recipe called for two and half cups of sugar and three and two-thirds cups of flour. If Sarah wanted to double the recipe, how many cups of dry ingredients would she have in all?

What is twelve and one-third cups?

400

A submarine was cruising at 1,320.5 feet below sea level. It then started to rise 10.25 feet per minute for 12 minutes. Find the submarine's new depth.

What is -1,197.5 feet or 1,197.5 feet below sea level?

500

A business made $250, 987 in 2014. Half of that money went to pay the employees. Let's say there were 10 employees. Find how much each person made each month. Round to the nearest cent if necessary.

What is $1,045.78?