Keystones — Cornerstone
Five GCSE retrieval questions · 18 December 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 81 + ? = 105
Answer: 24 -
2. Algebra
Find the next term: 13, 20, 27, 34, ...
Answer: 41 -
3. Geometry
Opposite = 12cm, hypotenuse = 13.9cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify: 6:9:6
Answer: 2:3:2 -
5. Statistics
Find the range of: 21, 32, 21, 10, 37
Answer: 27