Estimate the product 5981 × 4428 by rounding off each number to the nearest (i) tens (ii) hundreds.
Estimate the product 5981 × 4428 by rounding off each number to the nearest (i) tens (ii) hundreds.
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(i) 5981 rounded off to nearest tens = 5980
4428 rounded off to nearest tens = 4430
The estimated product = 5980 × 4430 = 26491400
(ii) 5981 rounded off to nearest hundreds = 6000
4428 rounded off to nearest hundreds = 4400
The estimated product = 6000 × 4400 = 26400000
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