Creating Expressions from Word Problems

Miss Kask made 28 burritos and x tacos. How can you write this as an expression?

• 28 · x

• 28 + x

• 28 - x

• x - 28

Mrs. Andrews rollerbladed 40 miles over 4 days. She rollerbladed the same distance every day. How would I figure out how much she rollerbladed every day?

• (40 + 4)

• 40 x 4

• 40 - 4

• 40 ÷ 4

Ms. Walsh has 12 more Harry Potter books than Mrs. Singer. How can I express how many books Ms. Walsh has? (x represents Mrs. Singer)

• x + 12

• 12 - x

• x - 12

• 12 · x

Sa ran a race at 5 miles an hour. The race took him x hours to complete. How can I express how many hours he ran?

• 5 ÷ x

• 5 + x

• 5x

• x + 5

Sarah is saving money to take a trip to Oregon. She received $450 in graduation gifts and saves $120 per week working. Which expression shows how much money Sarah has after working W weeks?

• 450W + 120

• 570W

• 120W + 450

• 330W

Let "p" represent the number of paper clips in a box.  If there are 76 boxes in a case, write an algebraic expression to show the total number of paper clips.

• 125p

• 76(p)

• 76 + p

• 125 = p

I open a saving account with $200 and plan to put $50 per month in the account.
Which expression represents this situation after x number of months?

• 200 + 50x

• 200x + 50

• 200 + x + 50

• 12x(50 + 200)

Mrs. Bembry puts $10 in a savings account each month and an extra $20 when she receives money for her birthday. If her birthday was this week, which expression represents the amount she has saved this year?

• 20m + 10

• 20m - 10

• 10m - 20

• 10m + 20

Nataly earned x dollars for walking her dog. Then, she also was given 15 dollars for her birthday. How much birthday does she have now?

• 15 - x

• x + 15

• 15 x

• 15 ÷ x

Rabi walks his ferret x times a week. After 4 weeks, how many times has he walked his ferret?

• 4x

• 4 + x

• x ÷ 4

• 4 - x