Rounding decimals practice for 11+ maths
21 October 2026
Rounding decimals made simple
Rounding decimals is about making numbers easier to work with while keeping them close to their original value. Children will see these questions in the 11+ exam, so it is important to understand the method.
Why rounding matters in 11+ maths
Rounding helps children estimate, compare and check answers. It is a key skill for calculations, word problems and data questions. Knowing how to round decimals accurately builds confidence.
The rounding rule explained
The most common rule is: if the next digit is 5 or more, round up. If it is less than 5, round down. Always look at the digit immediately after the place you are rounding to.
Worked example
Let's round 3.276 to two decimal places.
Step 1: Identify the place you are rounding to. Here, it is the second decimal place (the hundredths), which is 7 in 3.276.
Step 2: Look at the next digit to the right. This is the thousandths place, which is 6.
Step 3: Apply the rounding rule. The digit is 6, which is 5 or more, so round up.
Step 4: Add 1 to the hundredths place. 7 becomes 8.
The correct answer is 3.28.
Summary for parents
Encourage your child to practise rounding decimals step by step. Check which place to round to, look at the next digit, and apply the rule. This will help them answer questions quickly and accurately in the 11+ maths exam.
Key insight: Rounding decimals is a vital skill for 11+ maths, helping children handle numbers confidently and accurately.
