Keystones — Cornerstone
Five GCSE retrieval questions · 9 May 2024 · mathsvault.uk/keystones
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1. Number
What is 6.5 + 1.63 + 0.57?
Answer: 6.5 + 1.63 + 0.57 = 8.7 -
2. Algebra
Solve: 6x + 9 = x + 64
Answer: x = 11 -
3. Geometry
Opposite = 20cm, adjacent = 13cm. Calculate the angle
Answer: 57° -
4. Ratio
Simplify: 20:24:20
Answer: 5:6:5 -
5. Statistics
Calculate the mean of: 29, 38, 41, 10, 47, 42, 7, 27
Answer: 30.1