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Question
Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate (by rounding off to nearest tens):
4,89,348 - 48,365
Solution
Rounding off to hundreds, 489348 and 48365 may be rounded off to 489300 and 48400 respectively.
489300
-48400
440900
Rounding off to tens, 489348 and 48365 may be rounded off to 489350 and 48370 respectively.
489350
-48370
440980
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