Book Sales: Data Reasoning Example
27 October 2026
Understanding book sales data is a useful skill for 11+ data reasoning questions. Here is a simple example to help your child see how to add up totals from different days.
Worked example
A bookshop sold 15 maths books on Monday, 12 on Tuesday and 8 on Wednesday. How many maths books did the shop sell in total over these three days?
Step 1: Add the books sold on Monday and Tuesday.
15 + 12 = 27
Step 2: Add the books sold on Wednesday.
27 + 8 = 35
The correct answer is 35.
Key insight: Your child can now spot when to add up amounts from a table or list to find a total. This is a common type of data reasoning question in the 11+ exam. More practice questions like this are ready to help build confidence.
