True/False
Indicate whether the
statement is true or false.
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1.
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If I had the question, 3499 + 5321, I can estimate the sum. I would round 3499
to 3500, and 5321 to 5300. The estimated sum would be 7800.
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2.
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If I had the question 4789 + 3211, I can estimate the sum. I would round
4789 to 4800 and 3211 to 3200. The estimated sum would be 8000.
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3.
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Karli estimated the following: 5699 + 3421. “I estimated by rounding. I rounded 5699 to 6000 and 3421 to
3000. My estimated sum is 9000.”
To improve Karli’s estimate, she could
round to the nearest hundred instead.
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4.
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Sydnie estimated that 5677 + 2999 to be 8700. Syndie got her estimate by
rounding to the nearest thousand.
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5.
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Landen estimated that 2133 + 7891 = 10 000.
Landen got his estimate by
rounding 2133 to 2100 and 7891 to 7900.
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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6.
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Estimate the following sum.
1234 + 6711
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7.
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Estimate the following sum.
4999 + 3001
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8.
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Estimate the following sum.
478 + 5600
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9.
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Estimate the following sum.
2399 + 2799
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10.
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Estimate the following sum.
8780 + 1113
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