Keystones — Cornerstone
Five GCSE retrieval questions · 6 December 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 91 + ? = 105
Answer: 14 -
2. Algebra
Find the next term: 21, 30, 39, 48, ...
Answer: 57 -
3. Geometry
Opposite = 13cm, adjacent = 13cm. Calculate the angle
Answer: 45° -
4. Ratio
Calculate 10% of 160
Answer: 16 -
5. Statistics
Calculate the mean of: 20, 40, 41, 47, 49, 48, 49
Answer: 42