Keystones — Lintel
Five GCSE retrieval questions · 7 September 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 108 + 382
Answer: 108 + 382 = 490 -
2. Algebra
Factorise fully: 9x² + 12x
Answer: 3x(3x + 4) -
3. Geometry
Adjacent = 12cm, hypotenuse = 32cm. Find the angle
Answer: 68° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
A bag has 5 red and 6 blue balls. What is the probability of picking a red ball?
Answer: 5⁄11