Keystones — Lintel
Five GCSE retrieval questions · 10 January 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 150. What are the numbers?
Answer: 49, 50, and 51 -
2. Algebra
Factorise fully: 20x² + 8x
Answer: 4x(5x + 2) -
3. Geometry
Adjacent = 28cm, hypotenuse = 35cm. Find the angle
Answer: 36.9° -
4. Ratio
Calculate 11.7% of 936
Answer: 109.51 -
5. Statistics
Calculate the mean of: 35, 50, 8, 18, 10, 13, 43, 31
Answer: 26