Keystones — Cornerstone
Five GCSE retrieval questions · 31 August 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 53 + 85
Answer: 53 + 85 = 138 -
2. Algebra
Solve: x + 4 = 22
Answer: x = 18 -
3. Geometry
Find the area of a right triangle with base 10cm and height 9cm
Answer: 45cm² -
4. Ratio
Simplify: 12:20:8
Answer: 3:5:2 -
5. Statistics
Calculate the mean of: 5, 28, 29, 47, 8, 36
Answer: 25.5