Prep for Pre-Algebra

Equations

100

Solve for x: x + 15 = 85

70

200

Solve for x: x - 15 = -15

110

300

Solve for x: x - 23 = -65

-42

400

Solve for x: -3x - 26 = 160

62

500

DOUBLE JEOPARDY!!

Solve for x: 5x - 14 = 3x + 20

17

Proportions

100

There are 3 pigs for every 5 cows. How many pigs are there if there are 100 cows?

60 pigs

200

3 feet represents 50 miles. How many miles will 27 feet represent?

450 miles

300

A 25 foot flagpole has a 10 foot shadow. Find the height of a person with a 5 foot shadow.

12.5 feet

400

A model of a 220 foot tall building is 25 inches tall and 10 inches wide. How wide is the actual building?

88 feet

500

A model car is made to a scale of 2 to 25. If the model is 15 in long, how long, in inches, is the actual car?

187.5 in

Integers

100

Solve: -5 + -20 + 15 =

-10

200

Double Jeopardy!!

solve -5 cubed

-125

300

Solve: -100 + 40 + 15 + -30 =

-75

400

Solve: -120 + 50 + -40 + 10 =

-100

500

Solve: -3 raised to the fourth power

81

Fractions

100

Each team member must name an equivalent fraction to 1/2

2/4, 3/6, 10/20, 50/100, etc

200

Convert to an improper fraction. Simplify to its simplest form: 4 2/8

17/4

300

DOUBLE JEOPARDY!!

Convert this fraction to a percentage. Round the decimal to the hundredths place. Do not use a calculator: 17/29

59%

400

Simplify:

1/5 + 6/8

19/20

500

Simplify

7/9 + 1/5 

44/45

Percents

100

Find 25% of 200.

50

200

Find the total

Cost of a comic book: $2.99 Markup: 60% Tax: 5% 

$5.02

300

Find the sale price on a winter coat regularly priced at $250 and on sale with a 20% discount.

$200

400

DOUBLE JEOPARDY!!

Find the percent of decrease: original price: $25 sale price: $15

40% decrease

500

What percent of 137 is 86?

62.8%