Topic 3 Review for Test

Calculate the result of the following expression: (6.3 + 5.2) - 9 ÷ 3.0

• 8.5

• 5.7

• 4.1

• 7.3

Small boxes contain 8 chocolates each. Which expressions represent the total number of chocolates in b boxes?

• 8b

• 8 × b

• b + 8

• b ÷ 8

Choose the expressions that equals 15 when x = 5.

• x * 3

• 75 ÷ x

• (x + 10) ÷ 1

• 5x - 5

The same digits are used for the expressions 2⁵ and 5². How do you compare the values?

• 2⁵ is greater

• 5² is greater

• They are equal

• Cannot be determined

Compare the values of 3⁴ and 4³ using the same digits.

• 3⁴ is greater

• 4³ is greater

• They are equal

• Cannot be determined

Is the expression 2(3x + 4) equivalent to 6x + 8?

• Yes

• No

Are the expressions 3x + 9 and 3(x + 3) equivalent?

• Yes

• No

Is 4 the GCF of the numbers 12 and 18?

• Yes

• No

Is 6 the GCF of the numbers 18 and 24?

• Yes

• No

7. Mrs. Sheppard wants to rent a truck for a day. It will cost the daily fee of $60 plus $0.45 per mile driven.

   Let m = the number of miles Mrs. Sheppard drives for the day. Write an expression that shows the amount she will pay for the truck.

• $60m - $0.45

• $60m + $0.45

• $60 - $0.45m

• $60 + $0.45m