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  • Estimate the following products using general rule (a) 578 × 161     (b) 5281 × 3491       (c) 1291 × 592      (d) 9250 × 29

3. Estimate the following products using general rule:
(a) 578 × 161     (b) 5281 × 3491       (c) 1291 × 592      (d) 9250 × 29 

Answers (2)

best_answer

(a) 578\times161

Rounding off by general rule,

578 rounds off to 600

161 rounds off to 200,

Required product =  600\times200

= 120000

(b) 5281\times3491

Rounding off by the general rule,

5281 rounds off to 5000

3491 rounds off to 3500

Required product = 5000\times3500

= 1,75,00,000

(c) 1291\times592

Rounding off by general rule,

1291 rounds off to 1300

592 rounds off to 600

Required product = 1300\times600

= 780000

(d)  9250\times29

Rounding off by general rule,

9250 rounds off to 10000

29 rounds off to 30Required product = 10000 \times 30

= 300000

Posted by

HARSH KANKARIA

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120000

Posted by

Prince Singh

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