Keystones — Cornerstone
Five GCSE retrieval questions · 4 October 2022 · mathsvault.uk/keystones
-
1. Number
Calculate: 56 + 88
Answer: 56 + 88 = 144 -
2. Algebra
Solve: 6x + 9 = 2x + 29
Answer: x = 5 -
3. Geometry
Calculate the area of a circle with diameter 21cm
Answer: 346.36cm² -
4. Ratio
Find 77% of 341
Answer: 262.57 -
5. Statistics
Calculate the range of: 81, 21, 82, 69, 21, 91
Answer: 70