RJHS 6.EE.6 Numerical & Algebraic Expression Test 1

What is used to represent an unknown quantity?

• A star (*)

• A variable

• The number 1 because 1 x any number equals that number

• A blank space

• 5

• 4

• a

• Terms: -8

  Coefficients: +K, -J

  Constants: 3, 4

  Variables: + -

• Terms: + -

  Coefficients: k, j

  Constants: 3, 4, 8

  Variables: -1

• Terms: 3k, 4j, 8

  Coefficients: 3, 4

  Constants: 8

  Variables: k, j

• Terms: K, J

  Coefficients: -8 +8

  Constants: it's constantly hard

  Variable: + -

• 6b + 25

• 6b-25

• 25b + 6

• 25b - 6

• 8 + p

• 8 - p

• 8p

• 5r + $1.23

• 5- $1.23r

• $1.23 + $1.23 + 5r

• 5 + $1.23r

Determine whether the statement is true or false and explain your reasoning.

In m + 8, the variable m can have any value.

Mrs. Thompson wants to buy centerpieces to use at a party. It will cost $49 to have the centerpieces delivered plus $0.89 per centerpiece.

Let c = the number of centerpieces that Mrs. Thompson purchases. Write an expression that shows the amount of money she will pay all together.

Write a story problem that would explain the use of the expression: 2w + 17. Explain the role of the w in the expression.