Chapter 2 Review

True or False

100

623 is divisible by 3

false

200

960 is divisible by 5

True

300

974 divisible by 2

True

400

91 is prime

false (13 x 7)

500

127 is composite

false (1 x 127)

Factors

100

GCF for 8,10

2

200

GCF 24,64

8

300

GCF 138,180

6

400

Prime Factorization for 168

2³ x 3 x 7

500

Prime Factorization for 51

3 x 17

Simplify

100

0.256 as fraction

32/125

200

-2/9 + 5/6

11/18

300

(-2)⁵

-32

400

3/8x = 1/2    x=?

1 1/3

500

y - 1/3 = -4 5/7     y = ?

-4 8/21

Rational Numbers

100

compare 0.6 and 2/3 (>, <, or =)

<

200

-8/11 into decimal (round to three decimal places)

-0.727

300

0.36 as a fraction

9/25

400

16/5 as decimal.

3.2

500

1.35 as mixed number

1 7/20

Scientific Notation

100

25,400

2.54 x 10⁴

200

4,603,000

4.603 x 10⁶

300

0.017

1.7 x 10^-2

400

0.00516

5.16 x 10³

500

0.005234

5.234 x 10^-3