Unit 5 Math Expressions

64 ÷ 8 x 2

• 4

• 16

• 14

• 2

Insert parentheses to make each statement true:

30 – 4 x 2 + 5 = 57

• (30-4) x 2 + 5

• 30- (4x 2) + 5

• 30 - 4 x (2+5)

Simplify this expression: 94 + 4 x 19 – (3 + 10)

a. 198

b. 157

c. 222

d. 142

• A

• B

• C

• D

Consider the two patterns described below.

Which table below matches the patterns shown for x and y?

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Garth is giving 10 of the action figures from his collection to his brother. If a represents the number of action figures Garth starts with, which expression shows how many action figures Garth will have left?

a. a + 10

b. a – 10

c. 10a

d. a ÷ 10

• A

• B

• C

• D

Identify the variable and the operation in the algebraic expression 8y.

a. 8, division

b. 8, multiplication

c. y, division

d. y, multiplication

• A

• B

• C

• D

Which algebraic expression represents the table below?

a. K 3

b. k + 6

c. 3k

d. 3 ÷ k

• A

• B

• C

• D

Which equation could be used to describe a rule for the table

a. x ÷ 2 = y

b. 2x = y

c. x + 2 = y

d. x – 2 = y

• A

• B

• C

• D

There are 28 butterflies in a garden. All of the butterflies are blue or yellow. If b represents the number of blue butterflies, which expression represents the number of yellow butterflies?

a. 28 + b

b. 28 – b

c. 25 x b

d. 28 ÷ b

• A

• B

• C

• D

Use the correct order of operations to simplify this problem:

20 – 3 + 5 – 20 ÷ 5

a. 26

b. 11

c. 1

d. 18

• A

• B

• C

• D