Keystones — Cornerstone
Five GCSE retrieval questions · 9 December 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 59 + ? = 188
Answer: 129 -
2. Algebra
Simplify: 6x + 7x
Answer: 13x -
3. Geometry
Opposite = 16cm, adjacent = 17cm. Calculate the angle
Answer: 43.3° -
4. Ratio
Simplify the ratio 15:40
Answer: 3:8 -
5. Statistics
Calculate the mean of: 16, 49, 18, 35, 38, 50, 22
Answer: 32.6