Keystones — Cornerstone
Five GCSE retrieval questions · 30 August 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 82 + ? = 186
Answer: 104 -
2. Algebra
Solve: 4x + 10 = x + 40
Answer: x = 10 -
3. Geometry
Opposite = 14cm, adjacent = 17cm. Calculate the angle
Answer: 39.5° -
4. Ratio
Simplify: 12:15:9
Answer: 4:5:3 -
5. Statistics
Find the mean of: 15, 2, 14
Answer: 10.333333333333