Math Practice 101
Homework Explained - Math Practice 101

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Grade 4 HMH Go Math - Answer Keys


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Use the recipe for 15–18.

  • Question 15 (request help)

    Otis plans to make 3 batches of sidewalk chalk. How much plaster of Paris does he need?
  • cups plaster of Paris
  • Question 16 (request help)

    What’s the Question? The answer is \(\frac{32}{3}\) .
  • Type below:
  • Question 17 (request help)

    Patty has 2 cups of warm water. Is that enough water to make 4 batches of sidewalk chalk? Explain how you know without finding the exact product.
  •    
  • Question 18 (request help)

    Rita makes sidewalk chalk 2 days a week. Each of those days, she spends \(1\frac{1}{4}\) hours making the chalk. How much time does Rita spend making sidewalk chalk in 3 weeks?
  • hours
  • Question 19 (request help)

    Oliver has music lessons Monday, Wednesday, and Friday. Each lesson is \(\frac{3}{4}\) of an hour. Oliver says he will have lessons for \(3\frac{1}{2}\) hours this week. Without multiplying, explain how you know Oliver is incorrect.
  • Type below:

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