Keystones — Cornerstone
Five GCSE retrieval questions · 7 September 2023 · mathsvault.uk/keystones
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1. Number
What is 6.4 + 8 + 0.28?
Answer: 6.4 + 8 + 0.28 = 14.68 -
2. Algebra
Solve: x + 2 = 5
Answer: x = 3 -
3. Geometry
Opposite = 15cm, adjacent = 10cm. Calculate the angle
Answer: 56.3° -
4. Ratio
Simplify the ratio 10:40
Answer: 1:4 -
5. Statistics
Find the mean of: 13, 3, 13, 2
Answer: 7.75