Math Review

Fractions and Decimals

100

Convert 7/10 to a decimal.

.70

200

Convert .22 to a fraction and simplify.

11/50

300

Convert 4/100 to a decimal.

.04

400

Convert 7/20 to a decimal by scaling up the fraction.

.35

500

Convert 2/9 to a decimal using long division. Is this decimal repeating or terminating?

.222222

Repeating

Order of Operations

100

12 - 9 + 12 ÷ 3

7

200

When we get to multiplication and division in a problem, or addition and subtraction, we have to solve the problem from ___________ to ___________.

left, right

300

(9 + 33 - 6) ÷ 6 - 4

2

400

(10 + 43 - 5) ÷ 6 + 52

60

500

(10 + 59 - 3²) ÷ (24 - 4)

3

Ratios

100

You drive 360 miles in 6 hours. What is the unit rate for your speed?

1mi : 60hr

200

Bag #1: A 5 pound bag of potatoes for $8.55. Bag Bag #2: An 8 pound bag of potatoes for $11.23. 

Which bag of potatoes should you buy to get the best deal?

Bag #2

300

Milk #1: 32 ounces; $2.16

Milk #2: 128 ounces; $4.22

Which milk is the better deal?

Milk #2

400

There are 12 inches in a foot.

How many inches is 7 feet?

84 inches

500

There are 3 ft in a yard. 

Convert 141 ft to yards. Include units.

47 yards.

Multiplication and Division

100

-6 x 8 =

-48

200

-56 ÷ (-7) =

8

300

-70 ÷ 7 = 

-10

400

-2 x 4 x -2 x 3 =

48

500

-2 x -2 x 3 x -2 

-24