Homework Explained - Math Practice 101

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Grade 4 HMH Go Math - Answer Keys


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Use the table for 15–17.

  • Question 15 (request help)

    About how many times does a chicken’s heart beat in 1 minute?

  • about   times
  • Question 16 (request help)

    About how many times does a cow’s heart beat in 2 minutes?

  • about   times
  • Question 17 (request help)

    Use Reasoning About how many times faster does a cow’s heart beat than a whale’s?

  • about   times faster
  • Question 18 (request help)

    Martha had 154 stamps and her sister had 248 stamps. They combined their collections and put the stamps in an album. If they want to put 8 stamps on each  page, about how many pages would they need?

  • about   pages
  • Question 19 (request help)

    Jamie and his two brothers divided a package of 125 toy cars equally. About how many cars did each of them receive?

  • about   cars each
  • Question 20 (request help)

    Harold and his brother collected 2,019 cans over a 1-year period. Each boy collected the same number of cans. About how many cans did each boy collect? Explain how you found your answer.

  • about   cans

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