How to explain section b, nearest 100 in rounding to your child: Example question
30 October 2026
Rounding numbers to the nearest 100 can be simple when you know what to look for. Here is a clear example to help your child understand how to decide whether to round up or down.
Example question
Round 184 to the nearest 100.
Step 1: Look at the tens digit in 184. The tens digit is 8.
Step 2: If the tens digit is 5 or more, round up. 8 is more than 5, so round up.
Step 3: Add 1 to the hundreds digit. The hundreds digit is 1. 1 + 1 = 2.
Step 4: Change the tens and ones digits to 0. So, 184 becomes 200.
The answer is 200.
Key insight: After working through this example, your child will recognise when to round a number up to the next hundred or keep it at the lower hundred. This type of question is common in 11+ maths, and similar problems are ready for your child to practise next.
