True/False
Indicate whether the
statement is true or false.
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1.
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Karli was estimating the difference for the following number sentence: 4567 -
2144
Karli decided that the answer to her sentence should be about 2500.
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2.
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Julia estimated the following number sentence 8511 - 4211 to be close to
4500. Here is how she got her answer:
“I rounded 8511 to 8500, and 4211 to
4200.”
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3.
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Vera estimates that 317 + ___ = 4899. She estimated the missing number to
be close to 4600. Here is what Vera said:
“The answer will be close to 4600 because if
I round 4899 to 4900 and 317 to 300, I then subtract 300 from 4900.”
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4.
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2998 + ___ = 4000
The missing number will be close to 1000.
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5.
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7988 - ___ = 5878.
The missing number will be close to 1000.
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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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Use estimation strategies to help you to estimate each of the following
differences.
4663 - 2133
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7.
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Estimate the difference.
4366 - 1112
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8.
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Estimate the difference.
9543 - 6789
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9.
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Estimate the difference.
8952 - 3511
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10.
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Leo went to the store and bought a jacket that cost $249. He gave the
clerk $300. About how much change did Leo receive back?
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