2. Rounding off numbers
Numbers are rounded off when we need only
an estimate . Exact figures are not needed.
3. Rounding off to nearest 10
Find the tens that comes before and after the
given number.
Observe the once place digit
If ones digit <5 the number will be rounded off
If the ones digit =5 the number will be
rounded off.
If ones digit is >5 the number will be
rounded up.
4. Round down (10)
Round off tens number that comes before.
Round off to tens that comes after.