Adding & Subtracting
Multiplying & Dividing
Powers of 10
Square Roots & Cube Roots
Percentages
100

-3+5

2

100

-2times4

-8

100

4times10

40

100

root2 9

3 and -3

100

50% of $100

$50

200

-5-(-5)

0

200

-15times0

0

200

4divide10

0.4

200

root2 64

8 and -8

200

80% of $30

$24

300

16+(-8)

8

300

-7times-9

63

300

6.2times10^2

620

300

root3 64

4

300

A sale of 30% off is occurring on a pair of shoes costing $60. What is the new price of the shoes?

$42

400

-4.2-5.4

-9.6

400

12divide(-3)

-4

400

137divide10^3

.137

400

root2 ?=6

36

400

A stock grows by 10%. If the original price was $6.80, what is the new price of the stock?

$7.48

500

$16.37-$17.82

-$1.45

500

(-7)^3

-343

500

5.46times10^-4

0.000546

500

root3 125

5

500

The price of a new car drops about 20%, on average, off its MSRP. If the original price for a new Ford Pickup is $80,000, how much does the price depreciate after driving it off the lot?

$16,000