Keystones — Cornerstone
Five GCSE retrieval questions · 7 July 2021 · mathsvault.uk/keystones
-
1. Number
Calculate: 65 + 32
Answer: 65 + 32 = 97 -
2. Algebra
Solve: 4x = 32
Answer: x = 8 -
3. Geometry
Find the area of a circle with radius 9cm
Answer: 254.47cm² -
4. Ratio
Simplify the ratio 12:8
Answer: 3:2 -
5. Statistics
Calculate the mean of: 36, 17, 37, 11, 38, 7, 7
Answer: 21.9