Keystones — Capstone
Five GCSE retrieval questions · 27 August 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 150. What are the numbers?
Answer: 49, 50, and 51 -
2. Algebra
Find the next term: 1, 2, 4, 7, ...
Answer: 11 -
3. Geometry
Find c if a = 10cm and b = 20cm in a right triangle
Answer: 22.4cm -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 23. If 3 of them are 35, 33, 18, what is the missing number?
Answer: 6