Keystones — Bedrock
Five GCSE retrieval questions · 7 February 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 5⁄8 + 2⁄8
Answer: 7⁄8 -
2. Algebra
Simplify: 2x + 6x
Answer: 8x -
3. Geometry
Opposite = 10cm, hypotenuse = 14.cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
In ratio 7:4, the difference between shares is 81. What are the shares?
Answer: 189 and 108 -
5. Statistics
Find the mean of: 15, 16, 3
Answer: 11.333333333333