Estimating Sums and Differences
2 years ago
jhetsler
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10 QuestionsShow answers
  • Question 1
    45 seconds
    Q.
    answer choices
    500 - 200 = 300
    600 - 200 = 300
    600 - 200 = 400
    500 - 200 = 200
  • Question 2
    45 seconds
    Q.
    answer choices
    400 + 200 = 600
    500 + 200 = 600
    500 + 200 = 700
    400 + 200 = 700
  • Question 3
    45 seconds
    Q.
    answer choices
    400 + 100 = 500
    400 + 200 = 600
    400 + 200 = 500
    300 + 100 = 400
  • Question 4
    45 seconds
    Q.
    answer choices
    400 + 200 = 600
    500 + 200 = 700
    500 - 200 = 400
    500 - 200 = 300
  • Question 5
    45 seconds
    Q.
    answer choices
    300 - 100 = 400
    200 - 100 = 100
    300 - 100 = 200
    300 + 100 = 400
  • Question 6
    45 seconds
    Q.
    answer choices
    700 - 200 = 500
    800 - 200 = 600
    800 - 300 = 500
    700 - 200 = 500
  • Question 7
    45 seconds
    Q.
    answer choices
    300 - 200 = 100
    300 + 200 = 500
    400 - 200 = 200
    300 + 200 = 500
  • Question 8
    45 seconds
    Q.
    answer choices
    500 + 100 = 600
    500 - 100 = 400
    600 + 100 = 700
    600 + 200 = 800
  • Question 9
    45 seconds
    Q.
    answer choices
    900 - 300 = 600
    900 - 200 = 700
    1,000 - 200 = 800
    900 + 300 = 1,200
  • Question 10
    45 seconds
    Q.
    answer choices
    300 + 100 = 500
    300 + 100 = 400
    300 - 100 = 200
    400 + 100 = 500
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