Rounding to the nearest 100
22 October 2026
Rounding numbers to the nearest 100 is a useful skill for 11+ maths. It helps children estimate and work with large numbers more easily.
Here's a clear example to show how to round a number to the nearest 100 step by step.
Worked example
Round 247 to the nearest 100
Look at the digit in the tens place. In 247, the tens digit is 4.
If the tens digit is 5 or more, round up. If it is 4 or less, round down.
Because 4 is less than 5, we round down.
Change the tens and ones digits to 0. The hundreds digit stays the same.
The correct answer is 200.
After seeing this example, your child will know how to spot which hundred a number is closest to. They can now try similar questions to build confidence with rounding to powers of 10.
