Keystones — Cornerstone
Five GCSE retrieval questions · 15 March 2023 · mathsvault.uk/keystones
-
1. Number
Calculate: 38 + 78
Answer: 38 + 78 = 116 -
2. Algebra
Solve: x + 8 = 24
Answer: x = 16 -
3. Geometry
Opposite = 10cm, hypotenuse = 20cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify: 4:6:4
Answer: 2:3:2 -
5. Statistics
Find the mean of: 6, 13, 18
Answer: 12.333333333333