Positive & Negative Fractions and Decimals

Adding/Subtracting

100

-16 - 4

What is -20

200

24 + (-38)

What is -14.

300

8 - (-18)

What is 26.

400

4.62 - 12.5

What is -7.88.

500

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

What is -7/4 or -1 3/4

Dividing Fractions and decimals

100

2/5 ÷ -1/4

What is -1 3/5

200

-4/3 ÷ -11/12

What is 1 5/11

300

-1 1/2 ÷ -4/9

What is 3 3/8

400

-5.04 ÷0.4

What is -12.6

500

-2 5/6 ÷ -3/5

What is -4 1/2

Multiply Fractions and decimals

100

-3.4 ^. 1.6

What is 5.44

200

-1 1/2  ^. 4/9

What is -2/3 or -12/18

300

(-4.03) ^. (9)

What is -36.27

400

-6/11 ^. 2 3/4

What is -3/2 or -1 1/2

500

(-2 1/6 )(-1 1/5)

What is 13/5 or 2 3/5

Word Problems

100

An artist is painting statues. He has 7/8 of a gallon of paint remaining. Each statue requires 1/16 of a gallon of paint. How many statues can he paint?

What is 14 statues

200

A pizza restaurant had 6/10 of a gallon of pizza sauce left at the end of the night and divided it equally among 3 pizzas. How much sauce did they put on each pizza?

What is 1/5 of a gallon

300

The temperature in Hamden decreases -8 ºF each hour during a storm. What was the temperature change over the course of 1 1/3 hours?

What is -10 2/3 ºF each hour or -32/3 ºF

400

Over the course of 3 2/3 hours, the temperature decreases a total of 7 1/3 ºF. How much did the temperature change each hour?

What is -2ºF.

500

Over the course of 5 months, sales of mango smoothies dropped from $250.50 to $80.25.

Calculate the average rate of change per month during this time.

What is -$34.05