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Q.

When rounding the number to the nearest ten, the product of $54 × 47$ is ____.

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Detailed Solution

When rounding the number to the nearest ten, the product of

54 × 47

is 2500.
Rounding off 54 to the nearest tens,
The number placed at one's digit is equal to 4 and smaller than 5.
Therefore, after rounding off 54 to the nearest ten, we get 50.
Similarly rounding off 47 to the nearest tens,
The number placed at one's digit is equal to 7 and greater than 5.
Therefore, after rounding off 47 to the nearest ten, we get 50.
Calculating the product of

we get,

50 × 50 = 2500

Therefore, the product of the two numbers is 2500.

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