Keystones — Lintel
Five GCSE retrieval questions · 7 September 2025 · mathsvault.uk/keystones
-
1. Number
Calculate: 994 + 608
Answer: 1602 -
2. Algebra
Solve: 3x = 45
Answer: x = 15 -
3. Geometry
Adjacent = 21cm, hypotenuse = 29cm. Find the angle
Answer: 43.6° -
4. Ratio
Calculate 38.8% of 234
Answer: 90.79 -
5. Statistics
Calculate the mean of: 6, 21, 47, 6, 13, 36
Answer: 21.5