Multiplying Integers, Fractions, and Decimals

Multiplying Fractions

100

-3/4 x 8/15

-2/5

200

-5/6 x -14/10

7/6 or 1 1/6

300

5/6 x -6/7

-5/7

400

You exercise for 3/4 of an hour. You jump rope for 1/3 of that time. What fraction of the hour do you spend jumping rope?

1/4 of an hour or 15 minutes

500

You have 2/3 of a bag of sugar. You use 3/4 of the sugar to make cookies. How much of the entire bag do you use to make the cookies?

1/2 of the entire bag

Multiplying Integers

100

12 x -3

-36

200

-6 x -11

66

300

-10 x 2

-20

400

-20 x 4

-80

500

-6 x -7

42

Multiplying Decimals

100

-9.8 x 8.3

-81.34

200

-0.004 x -0.2

0.0008

300

12.4 x -0.2

-2.48

400

A bamboo plant grows about 1.25 feet every day. Find the growth of the plant in 1 week.

8.75 feet

500

A seafood restaurant offers buffet takeout for $6.99 per pound. You get 0.89 pounds of food. How much does your takeout meal cost?

$6.2211 or $6.22