Keystones — Cornerstone
Five GCSE retrieval questions · 18 July 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 94 + ? = 134
Answer: 40 -
2. Algebra
Solve: x + 3 = 23
Answer: x = 20 -
3. Geometry
Opposite = 8cm, adjacent = 9cm. Calculate the angle
Answer: 41.6° -
4. Ratio
Simplify the ratio 18:12
Answer: 3:2 -
5. Statistics
Find the mean of: 12, 9, 14, 15
Answer: 12.5