Rounding is the act of approximating numbers by ignoring everything after a given place value. This can sometimes make it easier to do mental calculations.
Usually, you will be asked to round to the nearest unit, ten, hundred or thousand.
Steps :-
If it is 5 or more, increase your underlined digit by 1.
If it is less than 5, leave your underlined digit alone.
Do not add any other numbers
Examples
This is very similar to rounding whole numbers, but the counting starts at the decimal point.
If it is 5 or more, increase your underlined digit by 1.
If it is less than 5, leave your underlined digit alone.
Do not add any other numbers
Examples
This is very similar to rounding decimals, but the counting starts at thefar left.
If it is 5 or more, increase your underlined digit by 1.
If it is less than 5, leave your underlined digit alone.
Include brackets with the number of significant figures shown.
Do not add any other numbers
Examples
Tolerance is the limits to which a measurement applies.
Examples