Keystones — Lintel
Five GCSE retrieval questions · 6 October 2024 · mathsvault.uk/keystones
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1. Number
What is the missing number: 78 + ? = 120
Answer: 42 -
2. Algebra
For y = 4x³ + 20, find y when x = 4
Answer: y = 276 -
3. Geometry
Adjacent = 12cm, hypotenuse = 28cm. Find the angle
Answer: 64.6° -
4. Ratio
Simplify: 8:24:8
Answer: 1:3:1 -
5. Statistics
Calculate the mean of: 50, 20, 26, 7, 17, 9, 44
Answer: 24.7