Rounding Decimals Practice for 11+ Maths
21 October 2026
Rounding decimals for 11+ success
Rounding decimals is a common topic in the 11+ maths exam. Children are expected to round numbers to a given number of decimal places, which helps them estimate, compare and calculate accurately.
Understanding how to round decimals makes it easier to answer questions quickly and avoid mistakes.
Why rounding decimals matters
Rounding is used in many parts of the 11+ test, from estimating answers to comparing measurements. It also helps children check their work and spot errors when working with longer decimal numbers.
Worked example: rounding to two decimal places
Round 4.736 to two decimal places.
Step 1: Look at the digit in the third decimal place (6).
Step 2: If this digit is 5 or more, round the second decimal place up by 1. If it is less than 5, leave the second decimal place as it is.
Step 3: The digit in the second decimal place is 3. Since the third decimal place is 6, add 1 to 3, making it 4.
Step 4: The rounded value is 4.74.
Tips for practising at home
Encourage your child to identify the place value of each digit before they round. Ask them to explain their reasoning aloud, and try rounding numbers to different decimal places for extra practice.
Building confidence for the exam
Regular practice with rounding decimals helps children become more accurate and less likely to make errors under time pressure. It also supports their understanding of place value and estimation.
Key insight: Practising rounding decimals builds confidence with a key 11+ topic and improves accuracy when working with decimal numbers.
