Keystones — Capstone
Five GCSE retrieval questions · 21 December 2025 · mathsvault.uk/keystones
-
1. Number
Calculate: 999 + 569
Answer: 1568 -
2. Algebra
Solve: x⁄7 = 5.2857142857143
Answer: x = 37 -
3. Geometry
Adjacent = 21cm, hypotenuse = 40cm. Find the angle
Answer: 58.3° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 27. If 3 of them are 16, 38, 23, what is the missing number?
Answer: 31