Keystones — Capstone
Five GCSE retrieval questions · 8 November 2025 · mathsvault.uk/keystones
-
1. Number
The sum of three consecutive numbers is 147. What are the numbers?
Answer: 48, 49, and 50 -
2. Algebra
Expand: 5(4x - 5)
Answer: 20x - 25 -
3. Geometry
Adjacent = 14cm, hypotenuse = 20cm. Find the angle
Answer: 45.6° -
4. Ratio
Calculate 33.1% of 418
Answer: 138.36 -
5. Statistics
The mean of 4 numbers is 33. If 3 of them are 20, 42, 22, what is the missing number?
Answer: 48