Keystones — Lintel
Five GCSE retrieval questions · 5 September 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 85 + ? = 109
Answer: 24 -
2. Algebra
Solve: 5x = 45
Answer: x = 9 -
3. Geometry
Adjacent = 15cm, hypotenuse = 21cm. Find the angle
Answer: 44.4° -
4. Ratio
Calculate 39.8% of 630
Answer: 250.74 -
5. Statistics
Find the range of: 32, 32, -15, -14, -28
Answer: 60