Keystones — Lintel
Five GCSE retrieval questions · 5 February 2024 · mathsvault.uk/keystones
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1. Number
What is the missing number: 57 + ? = 155
Answer: 98 -
2. Algebra
Solve: 2x = 6
Answer: x = 3 -
3. Geometry
Opposite = 9cm, adjacent = 8cm. Calculate the angle
Answer: 48.4° -
4. Ratio
Simplify: 20:24:12
Answer: 5:6:3 -
5. Statistics
Calculate the mean of: 24, 39, 13, 19, 33, 49, 11, 22
Answer: 26.3