Measure length with a centimetre ruler
31 October 2026
Measuring length with a centimetre ruler is a practical skill for children preparing for the 11+. It helps your child understand how to use everyday tools to find out how long objects are.
Example question
Measure the length of a pencil using a centimetre ruler.
Step 1: Place the pencil flat on the table.
Step 2: Put the ruler next to the pencil. Make sure the 0 cm mark is lined up with one end of the pencil.
Step 3: Look at the other end of the pencil. Read the number on the ruler where the pencil ends.
Step 4: Write down the length you see.
The pencil is 12 cm long.
Click or tap on the number line to answer
After this example, your child will know how to line up a ruler and read the correct number for length. They will be ready to try measuring other objects themselves.
