Keystones — Cornerstone
Five GCSE retrieval questions · 11 October 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 37 + ? = 195
Answer: 158 -
2. Algebra
Simplify: 7x + 9x
Answer: 16x -
3. Geometry
Opposite = 17cm, adjacent = 11cm. Calculate the angle
Answer: 57.1° -
4. Ratio
Find 83% of 186
Answer: 154.38 -
5. Statistics
Calculate the mean of: 21, 49, 31, 29, 26, 12, 41
Answer: 29.9