Estimate the sum 579+7994 by estimating the numbers to its nearest hundreds.
8573
8600
1200
7500
A
7500
B
1200
C
8600
D
8573
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Solution
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⇒579+7994=8573
⇒ In number 8573, its tens digit is 7, which is greater than 5.
⇒ So, we increase the digits at hundreds place by 1 and replace each one of the digits at tens and ones place by 0 to round off the given number to nearest to 100.
∴ The number nearest to 100 is 8600.
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