Mod 1/2 Retention Review

Fractions/Decimals

100

Find the decimal equivalent of 2 ¹/₄.

2.25

200

Find the fraction equivalent of 0.1

1/10

300

Find the decimal equivalent of 2 ²/₃.

2.6(repeating)

400

Find the fraction equivalent of 0.7(repeating).

⁷/₉

500

Find the decimal equivalent of 5 ³/₈.

5.375

Solving Equations

100

x² = 9

x = 3 or -3

200

x² = ⁹/₁₆

x = ³/₄ or -³/₄

300

x² = ²⁵/₈₁

x = ⁵/₉ or -⁵/₉

400

x³ = 8

x = 2

500

x³ = -8

x = -2

Real Numbers

100

Is 13.5 rational or irrational?

Rational

200

Which two whole numbers would ¹⁴/₃ be in between on a number line?

Between 4 and 5

300

What two whole numbers is the square root of 27 between?

5 and 6

400

List 3 perfect square numbers under 100.

1, 4, 9, 16, 25, 36, 49, 64, 81

500

Estimate the value of the square root of 70.

8.3-8.4

Evaluate

100

¹²/₁₃ - ²/₁₃

¹¹/₁₃

200

3^-2

¹/₉

300

4⁵ x 4^-3

16

400

4^-3

¹/₆₄

500

⁴/₅ - (-³/₅)

⁸/₅ or 1 ³/₅

Scientific Notation

100

For a number to be in scientific notation, the first part of the expression has to be between what two numbers? (____ x 10^_)

1 and 10

200

Write the number in standard notation: 8.2 x 10³

8,200

300

Write the number in standard notation: 1.2 x 10^-4

0.00012

400

Write the number in scientific notation: 4,030,000

4.03 x 10⁶

500

Multiply. Write the answer in scientific notation. 

(3.4 x 10⁴)(2 x 10^-6)

6.8 x 10^-2