How to round numbers

Discover how to round a number to the nearest ten or hundred and why this can be helpful.

How to round decimal numbers

Rounding numbers can be a useful way to estimate a total. Find out how to round decimals to different significant figures.

How to use estimation to check your answers

Find out about different ways to estimate and check your work.

4 Classroom videos

We have a selection of great videos for use in the classroom