Keystones — Lintel
Five GCSE retrieval questions · 20 May 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄3 + 4⁄6 + 4⁄5
Answer: 9⁄5 -
2. Algebra
What is the next term? 2, 8, 32, 128, ...
Answer: 512 -
3. Geometry
Opposite = 13cm, adjacent = 17cm. Calculate the angle
Answer: 37.4° -
4. Ratio
Calculate 47.8% of 745
Answer: 356.11 -
5. Statistics
Calculate the mean of: 15, 21, 20, 39, 50, 14, 28
Answer: 26.7