Keystones — Bedrock
Five GCSE retrieval questions · 22 February 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 3⁄8 + 4⁄8
Answer: 7⁄8 -
2. Algebra
Simplify: 3x + 5x
Answer: 8x -
3. Geometry
Opposite = 7cm, hypotenuse = 9.9cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 18:12
Answer: 3:2 -
5. Statistics
Find the mean of: 4, 14, 18, 5
Answer: 10.25