Estimate the product of 1049 × 351 by rounding off both numbers to nearest 100's.

450000

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400000

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440000

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404000

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Solution

The correct option is B
400000

Round off of 1049 to nearest 100 = 1000
Round off of 351 to nearest 100 = 400

$∴$ Required product = 1000 x 400 = 400000

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