Prealgebra - Chapter 1-6 REVIEW

Numbers Galore

100

Tell whether the given value of the variable is a solution of the equation.

x + 9 = 12;   x = -3

NOPE

200

Write the verbal sentence as an equation and solve for the variable:

"The quotient of p and 7 is 16"

p/7 = 16

p = 112

300

Solve for w:

w/8 = 9 - (-4)

w = 104

400

Simplify the expression:

0.8(3 - 11n) + 1.4n

2.4 - 7.4n

500

The area of a triangle is 15.75 cm². If the base of the triangle is 7.5 cm, what is its altitude?

4.2 cm

To Equal or Inequal

100

Solve 4(3r - 9) = 36

r = 6

200

Solve 13n - 45 = 36 + 4n

n = 9

300

Solve 3x - 5 > 6x + 13

x < -6

400

A one-year membership in a video rental club costs $10.  Members pay $1.25 per video rental.  You spent $45 in one year.  How many video did you rent?

28 videos

500

Solve -8y + 5 < 29

y > -3

Exponents Extraordinaire

100

Find the GCF between 45, 18, and 90.

9

200

Write (21a²)/(49ab) in simplest form.

(3a)/(7b)

300

Find the product:

7a² x 3a⁶

21a⁸

400

Write 8⁰b^-5 using only positive exponents.

1/b⁵

500

Order from least to greatest:

4.7 x 10^-5, 0.000056, 3.2 x 10^-6

3.2 x 10^-6, 4.7 x 10^-5, 0.000056

Fractions Frenzy

100

Find the difference:  4(5/18) - 6(8/9)

-2(11/18)

200

Find the quotient (2/3) divided by (-6/7).

-7/9

300

Solve for t in the equation below:

(4/5)t = -8/11

t = -10/11

400

Solve the equation:

-(8/9)x + (1/6) = 49/54

x = -5/6

500

Order the following from least to greatest:

1(19/20), -3.06, -0.8, 9/20, and -54/25

-3.06, -54/25, -0.8, 9/20, 1(19/20)

Ratio, Rates and (p)Roportion

100

You worked 15 hours and earned $195. How much did you earn per hour?

$13/hour

200

Given DEFG is similar to JKLM, find KL.

9

300

The distance between two cities on a map is 7 centimeters. The map has a scale of 1 cm : 20 km. Find the actual distance between the two cities.

140 km

400

The spinner shown is divided into equal parts. Find the probability that the spinner stops on a 5. 

3/8

500

In a game, you are to choose a 2 letter code from the 26 capital letters of the alphabet. Find the number of possible codes.

(26)(26) = 676