Keystones — Capstone
Five GCSE retrieval questions · 6 March 2026 · mathsvault.uk/keystones
-
1. Number
The sum of three consecutive numbers is 102. What are the numbers?
Answer: 33, 34, and 35 -
2. Algebra
Simplify: 11x - 6x + 10y - 7y
Answer: 5x + 3y -
3. Geometry
Adjacent = 21cm, hypotenuse = 33cm. Find the angle
Answer: 50.5° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 40. If 5 of them are 15, 45, 28, 31, 48, what is the missing number?
Answer: 73