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Unit 2 Review

Last updated almost 2 years ago

10 questions

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Question 1

1.

Sammy made these arrays to show the factors of his mystery number.

Fred made these arrays to show the factors of his mystery number.

Which statement about the boys' mystery numbers is true?

Both boys had prime mystery numbers.

Sammy had a prime mystery number, and Fred had a composite mystery number.

Both boys had composite mystery numbers.

Sammy had a composite mystery number, and Fred had a prime mystery number.

Question 2

2.

Which is NOT an example of a prime number?

Question 3

3.

Wilma received $60 for her birthday. She purchased movie tickets and drinks for herself and for her friend. Each movie ticket cost $9. Each drink cost $5. Wilma wrote an equation to represent m, the amount of money she had left after the movie outing.

m = 60 – [(2 × 9) + (2 × 5)]

How much money did Wilma have left after the movie outing?

$23

$32

$33

Not here

Question 4

4.

An expression is shown.

72(8 – 2(10 + 3))9

Which statement about the parentheses in this expression is true?

The inner parentheses indicate that 2 times 10 should be solved first

The outer parentheses indicate that 2 less than 8 should be solved first.

The inner parentheses indicate that the sum of 10 and 3 should be solved first.

The outer parentheses indicate that 72 times 8 should be solved first.

Question 5

5.

An expression is shown.

[(28 – 3 • 6) ÷ 2] × (27 – 8)

Which of these represents this expression after a possible first step in the simplifying process?

(25 – 3 • 6) ÷ 2 × (27 – 8)

[28 – 3 • 3] × (27 – 8)

[(25 • 6) ÷ 2] × (27 – 8)

[(28 – 18) ÷ 2] × (27 – 8)

Question 6

6.

An expression is shown.

[(7 • 6 – 8) ÷ 2] × (31 – 27)

Which of the following describes a possible first step to simplify the expression?

subtract 27 from 31

6 minus 8

multiply 7 by 6

multiply 2 by 31

Question 7

7.

Match each expression to the correct value. Values may be used more than once. Some values will not be used.

Question 8

8.

Ben had 135 sheets of colored paper. • He used 25 sheets to make a picture. • He used all the remaining sheets to make 5 posters. • He used the same number of sheets to make each poster. Which equation can be used to find n, the number of sheets of colored paper Ben used to make each poster?

(135 + 25) ÷ 5 = n

(135 – 25) ÷ 5 = n

(135 + 25) × 5 = n

(135 – 25) × 5 = n

Question 9

9.

Sally made treats for the bake sale.
She made a total of 6 dozen treats.
32 of the treats are cupcakes
8 of the treats are pies.
The remainder of the treats are equal amounts of chocolate cookies or peanut butter cookies.
Which Two expression can be used to show that Sally made 16 peanut butter cookies.

6 x 12 – 32 + 8 ÷ 2

[6 x 12 – (32 + 8)] ÷ 2

(6 x 12 – 32 – 8) ÷ 2

(6 x12) – 32 + 8 ÷ 2

Question 10

10.

A family spent $106 at a carnival. • They spent $16 on tickets to the carnival and $42 on food. • They spent the rest of the money on games. Which equation can be used to find g , the amount of money in dollars the family spent on games?

106 = g + 42 + 16

106 = 16 + 42 − g

106 = g + 42 − 16

106 = 42 − 16 − g