Keystones — Cornerstone
Five GCSE retrieval questions · 28 February 2024 · mathsvault.uk/keystones
-
1. Number
Calculate: 40 + 62
Answer: 40 + 62 = 102 -
2. Algebra
Solve: x + 11 = 23
Answer: x = 12 -
3. Geometry
Opposite = 15cm, hypotenuse = 17.3cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify: 20:20:8
Answer: 5:5:2 -
5. Statistics
Find the mean of: 12, 9, 16
Answer: 12.333333333333