Unit 2: Rational Numbers

Signed Decimals

100

-3.5 + 2.8

-0.7

200

-4.6 - 3.9

-8.5

300

(-2.4)(3)

-7.2

400

-7.2 ÷ 0.9

-8

500

5.6 - (-3.75)

9.35

Signed Fractions

100

1/2 + (-3/4)

-1/4

200

-5/6 - 1/3

-1 1/6

300

(-2/3)(3/5)

-2/5

400

3/4 ÷ (-2/3)

-1 1/8

500

2 1/3 - (-1 1/2)

3 5/6

Fractions Meet Decimals

100

0.5 + 1/4

0.75

200

1/2 - 0.8

-0.3

300

(2/5)(-1.5)

-0.6

400

3/8 ÷ 0.25

1.5

500

3/4 - (-1.25)

2

Order of Operations

100

6 + (-2)(3)

0

200

(-8) ÷ 2 + 5

1

300

3 - 2(1/2 - 1)

4

400

(-3)² - 4(1.5)

3

500

1/2 + (2/3) ÷ (-1/6)

-3 1/2

Miscellaneous

100

A number that can be written as a ratio of two integers is called this.

a rational number

200

Rational or irrational: √5

irrational

300

Which one is irrational: 0.333..., -4/7, √9, or pi?

pi

400

Evaluate 4a² b when a = -1/2, b = 2/3

2/3

500

Evaluate (m - n)² - mn when m = 1/2, n = -3/2

4 3/4