Keystones — Lintel
Five GCSE retrieval questions · 10 May 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 45 + ? = 141
Answer: 96 -
2. Algebra
Solve: 2x = 20
Answer: x = 10 -
3. Geometry
Adjacent = 29cm, hypotenuse = 44cm. Find the angle
Answer: 48.8° -
4. Ratio
Calculate 13.5% of 631
Answer: 85.19 -
5. Statistics
Calculate the mean of: 19, 19, 17, 25, 21, 12, 16
Answer: 18.4