Homework Explained - Math Practice 101

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Grade 4 HMH Go Math - Answer Keys


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  • Question 18 (request help)

    Martin collects stamps. He counted 48 pages in his collector’s album. The first 20 pages each have 35 stamps in 5 rows. The rest of the pages each have 54 stamps.  How many stamps does Martin have in his album?

    a. What do you need to know?

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  • Question 18 (request help)

    b. How will you use multiplication to find the number of stamps?

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  • Question 18 (request help)

    c. Tell why you might use addition and subtraction to help solve the problem.

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  • Question 18 (request help)

    d. Show the steps to solve the problem.

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  • Question 18 (request help)

    e. Complete the sentences.

    Martin has a total of _____ stamps on the first 20 pages.

    There are _____ more pages after the first 20 pages in Martin’s album.

    There are _____ stamps on the rest of the pages.

    There are _____ stamps in the album.

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  • Question 19 (request help)

    Select the expressions that have the same product as 35 × 17. Mark all that apply.

    • (30 × 10) + (30 × 7) + (5 × 10) + (5 × 7)
    • (30 × 17) + (5 × 17)
    • (35 × 30) + (35 × 5) + (35 × 10) + (35 × 7)
    • (35 × 10) + (35 × 7)
    • (35 × 10) + (30 × 10) + (5 × 10) + (5 × 7)
    • (35 × 30) + (35 × 5)

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