Multiplying by 10: Step-by-Step Example
22 October 2026

Multiplying by 10 is a key skill for children preparing for the 11+. Many children find it easier when they see each step clearly laid out. If you want to know how to explain multiplying by 10 in multiplying by 10, 100 and 1000 to your child, start with a simple example like the one below.

Worked example
Question: What is 7 × 10?
Step 1: Write the number 7.
Step 2: When you multiply by 10, each digit moves one place to the left.
Step 3: Add a zero in the ones place.
7 becomes 70.
The correct answer is 70.
Now your child can spot what happens to a number when it is multiplied by 10. They will notice the pattern and feel more confident with similar questions. There are more practice questions just like this to help build their skills.



