Math Practice 101
Homework Explained - Math Practice 101

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Grade 4 HMH Go Math - Answer Keys
Common Core


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Multiply by Tens

Choose a method. Then find the product.

  • Question 1 (request help)

    16 x 60 =   960   

    Use the halving-and-doubling strategy.
    Find half of 16: 16 ÷ 2 = 8.
    Multiply this number by 60: 8 x 60 = 480
    Double this result: 2 x 480 = 960

Problem Solving

  • Question 8 (request help)

    Kenny bought 20 packs of baseball cards. There are 12 cards in each pack. How many cards did Kenny buy?
  •    cards
  • Question 9 (request help)

    The Hart family drove 10 hours to their vacation spot. They drove an average of 48 miles each hour. How many miles did they drive in all?
  •    miles

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