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प्रश्न
Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate (by rounding off to nearest tens):
8325 - 491
उत्तर
Rounding off to hundreds, 8325 and 491 may be rounded off to 8300 and 500 respectively.
8300
-500
7800
Rounding off to tens, 8325 and 491 may be rounded off to 8330 and 490 respectively.
8330
-490
7840
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