Keystones — Cornerstone
Five GCSE retrieval questions · 5 January 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 79 + 48
Answer: 79 + 48 = 127 -
2. Algebra
Solve: 6x = 72
Answer: x = 12 -
3. Geometry
Opposite = 15cm, adjacent = 19cm. Calculate the angle
Answer: 38.3° -
4. Ratio
Calculate 25% of 48
Answer: 12 -
5. Statistics
Find the mean of: 15, 11, 14, 5, 5
Answer: 10