Rounding Worksheets
Round numbers to the nearest ten, hundred, thousand or ten thousand and use rounding to estimate.
Worksheets
The rounding rule in plain words
To round a number, find the place you are rounding to, then look at the digit just to its right. If that digit is 5 or more, round up; if it is 4 or less, keep the digit and replace everything after it with zeros. A number line helps: 47 lies between 40 and 50, and it is closer to 50.
Rounding is rarely an end in itself. Its real job is estimating: before calculating 398 + 205, a student who rounds to 400 + 200 knows the answer should be near 600. That is why this section includes estimation sheets. Checking answers against an estimate is one of the most useful habits in maths.
Questions parents ask
What do I do when the digit is exactly 5?
Round up. The 'round half up' rule is the standard taught in schools worldwide.
Why teach rounding at all?
It supports estimation, mental maths and understanding of large numbers in everyday life, from population figures to prices.
