Keystones — Cornerstone
Five GCSE retrieval questions · 19 January 2024 · mathsvault.uk/keystones
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1. Number
What is the missing number: 65 + ? = 187
Answer: 122 -
2. Algebra
Solve: x + 10 = 22
Answer: x = 12 -
3. Geometry
Opposite = 15cm, hypotenuse = 30cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify: 12:24:16
Answer: 3:6:4 -
5. Statistics
Find the mean of: 13, 4, 2, 12
Answer: 7.75