Keystones — Cornerstone
Five GCSE retrieval questions · 8 January 2023 · mathsvault.uk/keystones
-
1. Number
Find the total of 103, 220, and 104
Answer: 427 -
2. Algebra
Solve: 10x - 11 = 2x + 13
Answer: x = 3 -
3. Geometry
Calculate the area of a circle with diameter 17cm
Answer: 226.98cm² -
4. Ratio
Calculate 50% of 80
Answer: 40 -
5. Statistics
Calculate the mean of: 39, 22, 19, 17, 40, 49, 44, 34
Answer: 33