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Question
Estimate the following numbers to nearest tens and then add or subtract.
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Solution
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There were three candidates in an election. They received 687905 votes, 495086 votes and 93756 votes respectively. The number of invalid votes was 13849. If 25467 persons did not vote, find how many votes were registered.
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Estimate each sum to the nearest hundred: (236 + 689)
Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate (by rounding off to nearest tens):
1,08,734 - 47,599
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