Estimate the value of 57 + 1732 - 757 by rounding off first and third number to the nearest hundred and second number to the nearest ten.

1040

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1020

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1010

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1030

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Solution

The correct option is D 1030
57 rounded off to nearest hundred = 100
1732 rounded off to nearest ten = 1730
757 rounded off to nearest hundred = 800

100 + 1730 - 800 = 1030

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Estimate the product of 4789 and 346 by rounding off the first number to the nearest hundreds and second number to the nearest tens.

Q. The difference of which of the following pairs of numbers will be 790, if first number is rounded off to nearest ten and second number is rounded off to nearest hundred?

Q. Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate
(by rounding off to nearest tens):
4,89,348 – 48,366

Question 2(d)

Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate
(by rounding off to nearest tens):
4,89,348 – 48,365

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Estimate the value of 57 + 1732 - 757 by rounding off first and third number to the nearest hundred and second number to the nearest ten.

The correct option is D 103057 rounded off to nearest hundred = 100 1732 rounded off to nearest ten = 1730 757 rounded off to nearest hundred = 800 100 + 1730 - 800 = 1030

The correct option is D 1030
57 rounded off to nearest hundred = 100
1732 rounded off to nearest ten = 1730
757 rounded off to nearest hundred = 800

100 + 1730 - 800 = 1030