Math 8 Unit 3 Test Review

18 times a number

• n - 18
• 18n
• 18 + n
• 18 - n

The difference of a number and 8

• 8 - n

• 8n

• n - 8

• 8 + n

A number h increased by 12

• 12h

• 12 + h

• h - 12

• h + 12

the product of x and sixteen

• x + 16
• x - 16
• 16x
• x/16

46 less than a number

• 46 - n
• n - 46
• 46 + n
• n + 46

Write an algebraic expression for:
three times a number plus 16

• 3(16)+n
• 16n+3
• 3n+16

Which algebraic expression best represents the following verbal expression?
 
four less than the product of b and three

• 4 - 3b
• 4 - (3 + b)
• (4 + b) - 4
• 3b - 4

5 more than the product of 7 and s

• 7s + 5
• 5 - 7 + s
• 7(s - 5) 
• 5 - 7s

Translate the following expression: Twice a number increased by three

• n² +3

• 2n + 3

• 2(n + 3)

• n² - 3

Translate the following expression: a number squared divided by 15

• s³ x 15

• s² + 15

• s³ ÷ 15

• s² ÷ 15