Suppose in a cricket match, we say
“50,000 people are in the stadium”
Have we counted 50,000?
Are they exact?
No, they are not.
The total people can be 49,158 or 50,431
Since they are near to 50,000, we say total number is 50,000.
Here, we have rounded off the number.
Rounding off means we make the number simpler
Let’s look at how we round off .