Unit 1 Quiz Review

 $5^2-10\div2\times4$  

• 4

• 5

• 80

• 160

What is the first operation used in solving this problem:

2 ⋅ (3 + 8 ÷ 4)²

• multiplication

• addition

• division

• subtraction

Simplify:
[25-(13+4)+4] ÷ 3

• 6
• 2
• 3
• 4

7[12 − (6 − 2) ÷ 4]

• 7
• 77
• 14
• 0

True or false:
Addition ALWAYS comes before subtraction.

• True
• False

 $abc=d$  Solve for a:

•  $a=bcd$  

•  $a=\frac{bc}{d}$  

•  $a=\frac{c}{bd}$  

•  $a=\frac{d}{bc}$  

 $w=em+y$  Solve for y

•  $y=w-em$  

•  $y=w+em$  

•  $y=\frac{w}{em}$  

•  $y=wem$  

 $A=\frac{2d}{y}\$  solve for d

•  $d=2Ay$  

•  $d=\frac{y}{2A}$  

•  $d=\frac{2A}{y}$  

•  $d=\frac{Ay}{2}$  

-4x + 1 = 21

• x=120
• x=5
• x=30
• x=-5

True or False: In order to solve the equation below, you would add 6 to each side then multiply by -8 on each side.

 $\frac{g}{-8}\ -6\ =\ -12$  

• true

• false