Math Practice 101
Homework Explained - Math Practice 101

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Grade 3 Go Math Practice - Answer Keys
Chapter 1: Lesson 3: Estimate Sums


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Lesson Check

  • Question 1 (request help)

    The McBrides drove 317 miles on one day and 289 on the next day. What is the best estimate of the number of miles the McBrides drove in all during the two days?
    • 100
    • 400
    • 500
    • 600
  • Question 2 (request help)

    Ryan counted 63 birds in his backyard last week. This week, he counted 71 birds in his backyard. About how many birds did Ryan count in all?
    • about 70
    • about 100
    • about 130
    • about 200

Spiral Review

  • Question 3 (request help)

    What name describes this shape?
    • cone
    • cube
    • quadrilateral
    • square
  • Question 5 (request help)

    What is 503 rounded to the nearest hundred?
    • 500
    • 510
    • 600
    • 610
  • Question 6 (request help)

    What is 645 rounded to the nearest ten?
    • 600
    • 640
    • 650
    • 700

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