Keystones — Capstone
Five GCSE retrieval questions · 20 March 2025 · mathsvault.uk/keystones
-
1. Number
Calculate: 990 + 893
Answer: 1883 -
2. Algebra
Find the next term: 1, 3, 7, 13, ...
Answer: 21 -
3. Geometry
Adjacent = 22cm, hypotenuse = 42cm. Find the angle
Answer: 58.4° -
4. Ratio
Calculate 38.4% of 890
Answer: 341.76 -
5. Statistics
The mean of 5 numbers is 25. If 4 of them are 43, 35, 38, 28, what is the missing number?
Answer: -19