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Question
Estimate the following product by rounding off number to nearest tens:
1385 × 789
Sum
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Solution
We have, 1385 × 789
Rounded off 1385 to nearest tens = 1390
Rounded off 789 to nearest tens = 790
So, estimated product = 1390 × 790 = 1098100
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Chapter 1: Number System - Exercise [Page 18]
