Question

give a rough estimate ( byrounding off to nearest hundred) and also a closer estimate( by rounding off to nearest tens)

ya uper wali heading have ouestion तो नीचे है

O1 4,89,348 - 48, 365
ans​

Answer 1

1489348 - 48365 = 14,40,983

Now, lets start with rounding off.

3 is smaller than 5 so, simply remove three without any change in the previous no. (8).

14,40,98 × 10

8 is greater than 5 so add 1 to the previous no. (9).

1441 × (10)^3

1 is smaller than 5 so add 1 to thw previous no. so previous no. becomes 5.

145 × (10)^4

Now, we have 5 here, see that 4 is even, so let the no. 4 be 4.

14 × (10)^5

so, rounding off to tenth estimate gives the answer as 14 ×10^5