4
Question
Question 2(b)
Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate
(by rounding off to nearest tens):
1,08,734 – 47,599
Question 2(b)
Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate
(by rounding off to nearest tens):
1,08,734 – 47,599
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Solution
By rounding off to nearest hundreds, the rough estimate of their difference will be:
108734 can be rounded off to 108700.
47599 can be rounded off to 47600.
Hence, the estimated difference = 108700 - 47600 = 61100.
By rounding off to nearest tens, the rough estimate of their difference will be:
108734 can be rounded off to 108730.
47599 can be rounded off to 47600.
Hence, the estimated difference = 61130.
By rounding off to nearest hundreds, the rough estimate of their difference will be:
108734 can be rounded off to 108700.
47599 can be rounded off to 47600.
Hence, the estimated difference = 108700 - 47600 = 61100.
By rounding off to nearest tens, the rough estimate of their difference will be:
108734 can be rounded off to 108730.
47599 can be rounded off to 47600.
Hence, the estimated difference = 61130.
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