Expressions with Unknowns

Question 1

The variable in the expression is .

Revolt · Accepted Answer

y

Question 2

The operation in the expression is .

Revolt · Accepted Answer

+

Question 3

The constant in the expression is .

Revolt · Accepted Answer

9

Question 4

The correct algebraic expression is .

Revolt · Accepted Answer

5 + n

Question 5

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

Revolt · Accepted Answer

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

Question 6

Replace “a number” with .

Revolt · Accepted Answer

n

Question 7

The situation can be modeled with algebra tiles as and .

Revolt · Accepted Answer

one orange x tile

Question 8

Which statements are true? Select all that apply.

Revolt · Accepted Answer

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

Question 9

The situation can be modeled with algebra tiles as and .

Revolt · Accepted Answer

one orange x tile

Question 10

Replace “sum” with .

Revolt · Accepted Answer

+

Expressions with Unknowns Answers

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