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Question
Estimate the following by rounding off number to nearest tens:
76877 – 7783
Sum
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Solution
We have, 76877 – 7783
Rounded off 76877 to nearest tens = 76880
Rounded off 7783 to nearest tens = 7780
So, estimated difference = 76880 – 7780 = 69100
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Chapter 1: Number System - Exercise [Page 18]
