Unit 2 Study Guide

Simplify the fraction

 $\frac{42}{90}$  

•  $\frac{7}{15}$  

•  $\frac{9}{15}$  

•  $\frac{16}{30}$  

•  $\frac{22}{45}$  

Express the fraction  $\frac{3}{4}$  as a decimal. 

• 0.25

• 0.34

• 0.75

• 1.33

 $\sqrt{9+16}$  

Simplify the expression

• 4
  

• 5

• 7

• 25

$\sqrt{64}\ -\ \sqrt{36}$

Simplify the expression

• 0

• 2

• 5.29

• 10

 $11\ +\ \sqrt{25}$  

Simplify the expression

• 6

• 12

• 16

• 36

Between what two integers does  $\sqrt{132}$  lie?

• 10 and 11

• 11 and 12

• 12 and 13

• 13 and 14

Between what two integers does  $-\sqrt{47}$  lie?

• -4 and -3

• -5 and -4

• -6 and -5

• -7 and -6

What kind of number is  $-\sqrt{2}$  ?

• rational

• irrational

• not a real number

• natural number

Which of the following is NOT a real number?

• -10

• $\sqrt{-25}$

• $-\sqrt{25}$

• $\sqrt{26}$

Which lists the most names for the number 5.5?

• real number

• real number, rational number

• real number, positive integer

• rational number, whole number