Compare and Order Decimals with Missing Digits: Step-by-Step Example
22 October 2026
When your child faces decimals with missing digits, it can be tricky to decide which number is bigger. By breaking each number into place values, you can help them compare and order even when some digits are hidden.
Worked example
Which is bigger: 3.5_ or 3.48? The _ stands for a missing digit.
Step 1: Compare the whole numbers. Both are 3.
Step 2: Compare the tenths. 3.5_ has 5 in the tenths, 3.48 has 4. 5 is bigger than 4.
Step 3: Because 5 is bigger than 4, 3.5_ is bigger than 3.48 no matter what the missing digit is.
The correct answer is 3.5_ is bigger than 3.48.
| Number | Whole | Tenths | Hundredths |
|---|---|---|---|
| 3.5_ | 3 | 5 | _ |
| 3.48 | 3 | 4 | 8 |
After working through this example, your child will be able to spot which decimal is larger, even if a digit is missing. They are now ready to practise more questions just like this, building confidence for 11+ exams.
