Grade
5

Math in Our World: Ruined Receipt

A receipt for produce from The Farm Stand has some scribbles on it. Bananas: 5 pounds, $0.39 per pound, $1.95. Cantaloupe, 3, unknown price each, $8.04. Strawberries, unknown quantity, $1.88 per pound, $7.52. Watermelon, 12 pounds, $0.59 per pound, unknown total. Fuji apples, 6 pounds, unknown price per pound, $10.14. The total balance due for the fruit is unknown, but they paid $40 dollars in cash and got $5.27 in change.

Ling and her family bought some fruit at the store, but the receipt came out all wonky.

  1. Use pictures, models, or numbers to show what is happening.
  2. What do you notice? What do you wonder?
  3. What mathematical questions can you ask about this situation? Answer all the questions you can!

Use estimation to begin finding any missing information.

  • If 3 cantaloupes cost $8.04, what do you know about the price of each?
  • Between which two whole dollar amounts will the price per cantaloupe be?
  • Show your work to someone and explain your thinking. Did they understand?
  • Ask whether they have any other questions you can answer!

Ask your parents if you can make a fruit salad. Look for a flyer from your grocery store and make a plan. What would you put in your fruit salad? How much would it all cost?

Printable Version

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Reference for Educators

Sample problems and solutions