Q. 34.5( 57 Votes )

Estimate the foll

Answer :

(a) 578×161


Rounding off by general rule,


578 rounds off to 600


161 rounds off to 200,


So,


= 600×200 = 120000


(b) 5281×3491


Rounding off by the general rule,


5281 rounds off to 5000


3491 rounds off to 3500


So,


= 5000×3500


= 17500000


(c) 1291×592


Rounding off by general rule,


1291 rounds off to 1300


592 rounds off to 600


So,


= 1300×600


= 780000


(d) 9250×29


Rounding off by general rule,


9250 rounds off to 9000


29 rounds off to 30


So,


= 9000 × 30


= 27000

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