Keystones — Lintel
Five GCSE retrieval questions · 22 September 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 135. What are the numbers?
Answer: 44, 45, and 46 -
2. Algebra
Factorise: 5x² + 8x
Answer: x(5x + 8) -
3. Geometry
Adjacent = 20cm, hypotenuse = 32cm. Find the angle
Answer: 51.3° -
4. Ratio
Simplify: 12:16:8
Answer: 3:4:2 -
5. Statistics
Find the range of: 20, -6, -28, -16, -25
Answer: 48