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 table for 18–19.

  • Question 18 (request help)

    At the speeds shown, how much farther could a black-tailed jackrabbit run than a desert cottontail in 7 seconds?
  •     ft
  • Question 19 (request help)

    A black-tailed jackrabbit hops about 7 feet in a single hop. How far can it hop in 5 seconds?
  • about     hops
  • Question 20 (request help)

    Mr. Wright bought a 3-pound bag of cat food and a 5-pound bag of dog food. There are 16 ounces in each pound. How many ounces of pet food did Mr. Wright buy?
  •     ounces
  • Question 21 (request help)

    The sum of two numbers is 31. The product of the two numbers is 150. What are the numbers?
  • Type below:
  • Question 22 (request help)

    Use Reasoning 6 × 87 is greater than 5 × 87. How much greater? Explain how you know without multiplying.
  • Type below:
  • Question 23 (request help)

    Multiply 6 × 73. For 23a–23d, select True or False for each statement.

    a. A reasonable estimate of the product is $420.
    • True
    • False
  • Question 23 (request help)

     

    b. Using partial products, the products are 42 and 180.
    • True
    • False
  • Question 23 (request help)

    c. Using regrouping, 18 ones are regrouped as 8 tens and 1 one.
    • True
    • False

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