Multiplying and Dividing Rational Numbers

Outcomes

100

The product of 2 positives will be

positive

200

The quotient of a negative and a positive will be

Negative

400

(+) x (-) x (+)

Negative

500

(-) x (+) x (-) x (+) x (+)

Positive

Multiplying

100

-12 x -3

36

200

64 x (-4)

-256

300

-9 x -0.03

0.27

400

(-1/2) x (-6/9)

6/18

500

-9.8 x 0.05

0.49

Dividing

100

-14 / -2

7

200

864 / -16

-54

300

-7.5 / -0.06

125

400

24.1 / 5

4.82

500

-8 / 0.04

200

Word Problems

100

Sam gets paid $8.50 per hour.  How much money does he earn at the end the day if he works 1 hour?

8.50

200

Lisa begins the day with $20 in her account. She gets 4 checks for $13 each and 2 bills for 20 each. What is her ending balance

$32

300

124 x .5

62

400

Sam gets paid $8.50 per hour.  How much money does he earn at the end the day if he works 3 hours?

$25.50

500

Yolanda burns 90 calories for every 3 hours she runs. If she runs for 18 hours throughout the week. How many total calories will she burn?

540 calories 

Mixed

100

- 95 ÷ -5

19

200

(-14)÷(2)(3)

-21

300

True or False- It is impossible to predict the sign of the quotient in a division expression.

False

400

True or False- All integers are rational numbers

True

500

True or False- All rational numbers are integers

False