Interpreting Word Algebraic Expressions

Translate this phrase into an algebraic expression:

Triple a number increased by 16

• 3(16) + n

• 16n + 3

• 3n + 16

• 2n - 16

There are r rows of chairs with 7 chairs in each row. Choose the expression that shows the number of chairs in total.

• 7r

• 7/r

• r-7

• r+7

Kenneth has g gumballs. Maggie has 29 fewer gumballs than Kenneth. Choose the expression that shows how many gumballs Maggie has.

• g+29

• g-29

• 29g

• g ÷ 29

A cell phone company charges $40 per month plus a $35 activation fee. What is the expression for the total cost for m months?

• 40 - 35m

• 40m - 35

• 40m + 35

• 40 + 35

• A

• B

• C

• D

Match the following

• 2(n - 10)

• The product of 4 and a number increased by 9

• 3(n + 7)

• Twice a number decreased by 5

• 4n + 9

• 3 times the sum of a number and 7

• 2n - 5

• The difference between a number and 10 multiplied by 2

• 3n - 7

• 7 less than 3 times a number

n3 + 9

• Nine and a number increased by three

• The quotient of nine and three is a number

• The product of three and a number increased by nine

What does the variable x represent in the expression?

• packages of balloons

• the balloons

• the number of friends

• none of the above

Which expression is represented?

• -2x + 4

• 4x - 2

• 2x + 4

• 2x - 4

r + 10 Choose two

• a number, r, increased by 10

• r and ten more

• r minus 10

• the difference of r and 10