Maths Questions on Interpreting and Using Scale for 11+ Exams
26 October 2026
Understanding scale in 11+ maths
Scale questions are common in 11+ exams. They test if your child can use a scale to find real-life measurements from diagrams, maps or plans.
What does scale mean
A scale is a ratio that shows how much smaller or larger something is compared to real life. For example, a scale of 1:50 means every 1 cm on the drawing represents 50 cm in real life.
How to use scale in questions
To use a scale, multiply the measurement on the drawing by the scale factor to find the real measurement. Always check the units in the question.
Worked example
A room is shown as 4 cm long on a scale drawing. The scale is 1:50.
Step 1: Write the scale as 1 cm = 50 cm.
Step 2: Multiply the drawing length by the scale factor: 4 cm × 50 = 200 cm.
Step 3: Convert 200 cm to metres by dividing by 100: 200 ÷ 100 = 2 m.
The real room is 2 metres long.
Key insight: Practise using different scales and units. Encourage your child to underline the scale and units in each question before starting any calculations.
Common mistakes to avoid
Children sometimes forget to check the units or multiply by the scale factor. Remind them to read the question carefully and label their answers.
Further practice
Try measuring objects at home and creating your own scale drawings together. This helps build confidence for exam questions.
