Keystones — Cornerstone
Five GCSE retrieval questions · 5 May 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 43 + ? = 101
Answer: 58 -
2. Algebra
Solve: 4x = 60
Answer: x = 15 -
3. Geometry
Opposite = 10cm, hypotenuse = 20cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify: 10:8:4
Answer: 5:4:2 -
5. Statistics
Calculate the mean of: 16, 33, 37, 32, 40, 42, 48, 39
Answer: 35.9