Pre-Algebra Unit 1 Review

(24-16)÷8

• 8

• 1

• 2

• 7

(4x8)-(9+7)

• 16
• 25
• 41
• 32

(7 + 41) ÷ 2 – 15 =

• 19
• 9
• 25
• 3

5-(7+3)÷2

• 0
• -5
• 5
• 6

Find and explain the error.    
 5 - 3 + 2
     5 - 5
        0

• There is no error.
• Addition was done first and you should have subtracted first
• There is a subtraction error

• Division

• Multiplication

• Addition

• Subtraction

• 32

• 0.5

• 2

• 93

• 150

• 25

• 125

Simplify:
[25-(13+4)+4] ÷ 3

• 6
• 2
• 3
• 4

Evaluate 2a + 4b 
if a = 10     and    b = 6

• 20
• 24
• 44
• 4