Keystones — Cornerstone
Five GCSE retrieval questions · 10 October 2024 · mathsvault.uk/keystones
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1. Number
What is the missing number: 33 + ? = 104
Answer: 71 -
2. Algebra
Solve: x + 15 = 27
Answer: x = 12 -
3. Geometry
Opposite = 8cm, hypotenuse = 16cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify: 12:24:12
Answer: 1:2:1 -
5. Statistics
Find the mean of: 19, 13, 18
Answer: 16.666666666667