Expressions with Unknowns

Question 1

The variable in the expression is .

Revolt · Accepted Answer

B: y

Question 2

Model the algebraic expression x + 2. Then select all the statements that are true.

Revolt · Accepted Answer

B: The variable x is represented by a rectangular orange x tile.; E: + 2 is represented by 2 square orange + tiles.

Question 3

Replace “a number” with .

Revolt · Accepted Answer

A: n

Question 4

The situation can be modeled with algebra tiles as and .

Revolt · Accepted Answer

A: one orange x tile

Question 5

Which statements are true? Select all that apply.

Revolt · Accepted Answer

A: You can replace “a number” with a variable to represent an unknown value.; C: You can replace “difference” with a subtraction sign.; D: You can replace “seven” with 7.; E: The correct expression is n – 7.

Question 6

The situation can be modeled with algebra tiles as and .

Revolt · Accepted Answer

A: one orange x tile

Question 7

The operation in the expression is .

Revolt · Accepted Answer

D: +

Question 8

Replace “sum” with .

Revolt · Accepted Answer

B: +

Question 9

The situation can be modeled with algebra tiles as and .

Revolt · Accepted Answer

C: four orange + tiles

Question 10

The situation can be modeled with algebra tiles as and .

Revolt · Accepted Answer

D: four blue – tiles

Expressions with Unknowns Answers

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