Keystones — Cornerstone
Five GCSE retrieval questions · 28 July 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 40 + ? = 124
Answer: 84 -
2. Algebra
What is the next term? 2, 8, 32, 128, ...
Answer: 512 -
3. Geometry
Opposite = 19cm, adjacent = 13cm. Calculate the angle
Answer: 55.6° -
4. Ratio
Simplify: 9:18:15
Answer: 3:6:5 -
5. Statistics
Calculate the mean of: 16, 23, 30, 49, 38, 30, 17, 33
Answer: 29.5