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Estimate
Numbers
Estimating
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Estimating
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Estimating
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Estimating
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Estimating
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Estimating
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Estimating Numbers
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3:40
Khan Academy
Khan Academy
Let's learn about estimating when adding multi-digit numbers. We see how to round numbers to the nearest 10 and then add them together to get an approximate sum. This technique is helpful for us when we need to make quick mental calculations and don't require an exact answer.
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