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Grade 5 Math · World 7: Sharing Kitchen · Level 72
Multiplying Stories
Solve real problems, keeping any correct form of the answer.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 72
- Each of 12 children gets 2 thirds of a sandwich. How many sandwiches are needed?
- Before you solve, predict. 2 thirds is less than 1, so the answer is less than 12.
- 1 third of 12 is 4, and 2 of those is 8.
- Any equal form is right. 24 thirds is 8 too. Use the form that makes the story clear: 8 sandwiches.
Georgia's K-12 Mathematics Standards:
- 5.NR.3.4 — Model and solve problems involving multiplication of a fraction and a whole number.
- 5.NR.3.5 — Explain why multiplying a whole number by a fraction greater than one results in a product greater than the whole number, and why multiplying a whole number by a fraction less than one results in a product less than the whole number and multiplying a whole number by a fraction equal to one results in a product equal to the whole number.