Test 4 Review

Section 5.1

100

This number is the largest number that is a factor of two or more natural numbers.

What is the greatest common divisor?

200

Is 44122 divisible by 10?

No, the last digit is not 0.

300

What is the greatest common divisor of 28 and 42?

14

400

What is the prime factorization of 20?

2² * 5

500

What is the least common multiple of 84 and 56?

168

Section 5.2

100

Evaluate |-2|.

2

200

Find -2+(-8)

-10

300

Evaluate (-8)-3(-5)

-23

400

evaluate -9²

-81

500

Evaluate:

-4(2-4)²

-16

Section 5.3

100

reduce 28/45 to lowest terms

4/5

200

-1/4 ÷ 7/8

2/7

300

(1/3-1/4) ÷ 5/8

2/15

400

reduce 100/50 to lowest terms

2

500

evaluate 4/3-1/6

7/6 or 1 1/6

Section 5.4

100

What is the irrational number that represents the circumference of a circle divided by the diameter of the circle?

π (pi)

200

Simplify √ 64 *10

8√ 10 

300

Simplify √ 200

10√ 2

400

What is 8√ 2  --  3√ 2

5√ 2

500

What is (14√ 13) -(13√ 13) +(13√ 13)

14√ 13

Section 5.5

100

Given {0.1, √ 64, 0, -9, √ 5, π, 2.7, 3/4}

Which are natural numbers?

√64

200

Given {0.1, √ 64, 0, -9, √ 5, π, 2.7, 3/4}

Which are whole numbers?

√64, 0

300

Given {0.1, √ 64, 0, -9, √ 5, π, 2.7, 3/4}

Which are integers?

√64, 0,-9

400

Given {0.1, √ 64, 0, -9, √ 5, π, 2.7, 3/4}

Which are rationals?

√64, 0,-9, 2.7, 3/4, 0.1

500

Give an example of a number that is rational but not an integer

Any fraction or ending decimal will work here.