Question

Round off 6.398 to the whole number

Answer 1

The answer is 6.

Explanation:

When rounding off to the nearest whole number, we check the first decimal place.
But here we see that there are 3 digits are the decimal place.
Thus we check whether the 3 digits making up the number is less that or greater than 500.
As it less than 500 then then while number stays, if more than 500 the add 1 to the number.

Hope it helped you..