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

Answer 1

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.