Keystones — Cornerstone
Five GCSE retrieval questions · 2 October 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 93 + 94
Answer: 93 + 94 = 187 -
2. Algebra
Solve: x + 2 = 8
Answer: x = 6 -
3. Geometry
Opposite = 8cm, hypotenuse = 16cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 10% of 162
Answer: 16.2 -
5. Statistics
Calculate the mean of: 21, 26, 28, 15, 23, 32, 39, 50
Answer: 29.3