Pre-Algebra Review

PercentageParty

100

Find 85% of 200. 

170

200

30% of what number is 12?

40

300

What is the result when the number 28 is decreased by 75%?

7

400

The population of a city decreases by 6% per year. If this year's population is 1,100 people, what will next year's population be?

1,034 people

500

Yesterday, Dana had $-10 in her checking account. After depositing a birthday check today, her new account balance is $50. Calculate the percent change from yesterday to today.

600%

Find the Unknown

100

? xx 15 = 75

? = 5

200

28/? = 112/100

? = 25

300

6/10 div ?/10 = 2/5

? = 15

400

2/3 - 3/3 = ?/3

? = -1

500

7/5 + 8/? = 29/15

? = 15

Convert RationalNumbers

100

Convert 118% to a decimal

1.18

200

Convert 0.101 to a fraction.

101/1000

300

Conert 90/110 to a decimal

0.overline81

400

Convert 80% to a picture of a fraction.

500

Determine what percentage is represented:

125%

Fun withFractions

100

Which fraction is larger?

6/7 or 9/11

6/7

200

4/3 - 1/2

5/6

300

-5/13 + 4/3

37/39

400

2/5 div 9/5 xx (-3)/2

-1/3

500

4/9 + (1/3)^3

13/27

Variety

100

-3 + (-12)/4 xx 3

-12

200

Use the distributive property to write an expression equivalent to 54+18.

2(27 + 9)

3(18 + 6)

6(9 + 3)

...

300

Simplify the fraction:

155/225

31/45

400

((56 + 2^3))/2^3

8

500

What is the definition of a rational number?

A number that can be written as a fraction/ratio of two integers.