Keystones — Cornerstone
Five GCSE retrieval questions · 22 October 2024 · mathsvault.uk/keystones
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1. Number
What is the missing number: 41 + ? = 127
Answer: 86 -
2. Algebra
Simplify: 3x + 3x
Answer: 6x -
3. Geometry
Opposite = 5cm, hypotenuse = 7.cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 12:9
Answer: 4:3 -
5. Statistics
Find the mean of: 7, 18, 15, 16, 18
Answer: 14.8