Keystones — Lintel
Five GCSE retrieval questions · 29 August 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 994 + 548
Answer: 1542 -
2. Algebra
Factorise fully: 10x² + 6x
Answer: 2x(5x + 3) -
3. Geometry
Opposite = 14cm, adjacent = 19cm. Calculate the angle
Answer: 36.4° -
4. Ratio
Find 67% of 320
Answer: 214.4 -
5. Statistics
A bag has 6 red and 5 blue balls. What is the probability of picking a red ball?
Answer: 6⁄11