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Knowing Our Numbers

Question 3:

Estimate the following products using general rule:

(a) 578 × 161 (b) 5281 × 3491

(c) 1291 × 592 (d) 9250 × 29

Answer:

(a) 578 × 161

Rounding off by general rule, 598 and 161 may be rounded off to 600 and 200 respectively.

(b) 5281 × 3491

Roun…

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