Operations & Expressions Review

 $\frac{7}{10}+\frac{1}{5}=$  

•  $\frac{8}{15}$  

•  $\frac{9}{10}$  

•  $\frac{7}{50}$  

•  $\frac{8}{10}$  

 $87.15-34.6$  

• 47.69

• 52.45

• 3015.39

• 52.55

 $\frac{3}{8}\div\frac{1}{2}=$  

•  $\frac{3}{16}$  

•  $\frac{6}{8}$  

•  $\frac{3}{4}$  

•  $\frac{4}{10}$  

How many decimal places will

 $63.51\cdot7.2$  have?

• 1

• 2

• 3

• 4

Simplify

 $\left(-3+9\right)\div-1\times10$  

• 60

• -60

• -0.6

• 0.6

Simplify  $2\left[45\div\left(11-8\right)^2\right]-3$  

• -30

• 4

• 7

• 447

What would be the first step to simplify

 $1+2^4\div56\div7$  

• Parentheses

• Exponents

• Divide

• Add

Evaluate the expression using the following a = -3, b = 8, and c = -4

 $a^2+7c-1$  

• -20

• 20

• -38

• 38

Evaluate the expression using the following a = -3, b = 8, and c = -4.  $\left|10-4b\right|$  

• -22

• 22

• -42

• 42

Evaluate the expression using the following a = -3, b = 8, and c = -4.  $\frac{2c^2+5b}{a}$  

•  $-\frac{8}{3}$  

•  $\frac{8}{3}$  
  

• -24

• 24