Pre-Algebra Ch 2 Review

Evaluating Expressions

100

Solve z - 52 if z= -29

-81

200

Solve 8z when z=12

96

300

How many terms are in 2x² - 6x + 18

3

400

Solve 18 - (3s - 4t) when s= 3 and t = -1

5

500

Solve 7m² + 4m + 3 when m=-4 

99

Simplifying Expressions

100

Simplify 5(7b)

35b

200

Simplify 6 + (a + 17)

a + 23

300

Simplify -3z + 5z

2z

400

Simplify 7c² + 4c³ - 8 - 3c³ + 5c³

6c³ + 7c² - 8

500

Simplify -7 + 2(4a + 2)

8a - 3

Translating Word Phrases

100

What is the expression for 7 less than 3

3 - 7

200

What is the expression for 12 decreased by 19

12 - 19

300

What is the expression for -6 plus a number

-6 + n

400

What is the expression for the quotient of a number and 21

n / 21

500

What is the expression for the opposite of 12 divided by the square root of r

-12/√r

Scientific Notation

100

1,000,000 is 10 to what power?

10⁶

200

What is 72,500,000 in scientific notation?

7.25 X 10⁷

300

What is 0.00009 in scientific notation?

9 X 10^-5

400

What is 1.256 X 10⁵ in standard form?

125,600

500

What is 2.9 X 10^-4 in standard form?

0.00029

Estimating

100

Round 62,349 to the hundreds place.

62,300

200

Estimate 64 + 37.

60 + 40 = 100

300

Estimate 5.372 - 1.805.

5 - 2 = 3

400

Estimate 31 X 78.

30 X 80 = 2400

500

Estimate 113 ÷ 6.

120 ÷ 6 = 20