Mid Assessment Review

Equivalent Expressions

100

Which expression is equivalent to 4(x+6) ?

A. 4x+6
B. x+24
C. 4x+24
D. 24x

C. 4x+24

200

Which expression is equivalent to 10x+50?

A. 10 (x + 50)
B. 10 (x + 5)
C. x + 60
D. 5 (2x + 10)

B. 10 (x + 5)

300

Simplify:2(3n - 4) + 4n

A. 10n - 4
B. 6n - 8
C. 10n - 8
D. 12n - 8

C. 10n - 8

400

Which expression is equivalent to 3/4x + 6?

A. 3/4(x + 6)
B. 3/4(x + 8)
C. 9/4(x + 2)
D. 3(x + 2)

B. 3/4(x + 8)

500

A student rewrites 6(2x + 5) as 12x + 5.
What is the correct expression?

A. 12x + 5
B. 6x + 30
C. 12x + 25
D. 12x + 30

D. 12x + 30

Properties of Operations

100

Which property allows you to rewrite x + 7 = 7 + x?

A. Associative
B. Identity
C. Commutative
D. Distributive

C. Commutative

200

Which property is used to rewrite 4(2x + 9) as 8x + 36?

A. Commutative
B. Associative
C. Identity
D. Distributive 

D. Distributive

300

Which property allows you to regroup terms without changing the value?

A. Distributive
B. Identity
C. Associative
D. Commutative

C. Associative

400

Which property is shown in
1/2(x + 10) = 1/2x + 5?

A. Associative
B. Commutative
C. Identity
D. Distributive

D. Distributive

500

Why is the distributive property important?

A. It changes the value of the expression
B. It lets you add variables
C. It ensures every term inside parentheses is multiplied
D. It simplifies constants only

C. It ensures every term inside parentheses is multiplied

Combine Like Terms

100

Simplify: 6x + 3x

A. 18x
B. 9x
C. 6x
D. 3x

B. 9x

200

Simplify: 1/2x + 1/2x

A. 1/2x
B. x
C. x²
D. 1/4

B. x

300

Simplify: 4x−y−6x+3y+10x

A. 8x+y
B. 10x+2y
C. 8x+2y
D. 8xy

C. 8x+2y

400

Which pair are like terms?

A. 5x and 3y
B. x and x²
C. 5x and −2x
D. 2y and 2x

C. 5x and −2x

500

A student simplifies 2/3x + 1/3y as x + y.

What mistake was made?

A. Coefficients were added incorrectly
B. Unlike terms were combined
C. Fractions were not simplified
D. Variables were multiplied

B. Unlike terms were combined

Write an Expression

100

Which expression represents “five more than a number n”?

A. 5n
B. n−5
C. n+5
D. 5+1n

C. n+5

200

Which expression represents “a number r plus twice that number”?

A. 2r
B. r+2r
C. 3+r
D. 2(r+1)

B. r+2r

300

Each pack has b blue pens and twice as many black pens.
Which expression represents the total?

A. 2b
B. b+b
C. b+2b
D. 2(b+b)

C. b+2b

400

An item costs CC dollars and is discounted 25%.
Which expression shows the sale price?

A. C+0.25
B. 1.25C
C. C−0.25
D. (1−0.25)C

D. (1−0.25)C

500

Why does (1−0.25)C represent a discount?

A. It adds tax
B. It reduces the original price
C. It increases the value
D. It simplifies the expression

B. It reduces the original price

Evaluate Expressions

100

Evaluate x+6 when x=4.

A. 20
B. 14
C. 10
D. 6

C. 10

200

Evaluate 1/2x when x=10.

A. 20
B. 5
C. 10
D. 2

B. 5

300

Evaluate 2(x+3) when x=5.

A. 11
B. 16
C. 13
D. 10

B. 16

400

Why should parentheses be used when substituting values?

A. To change the value
B. To add terms
C. To follow order of operations
D. To simplify faster

C. To follow order of operations

500

What is the difference between simplifying and evaluating?

A. They are the same
B. Evaluating rewrites the expression
C. Evaluating substitutes a value; simplifying rewrites the expression
D. Simplifying gives a number

C. Evaluating substitutes a value; simplifying rewrites the expression