Keystones — Lintel
Five GCSE retrieval questions · 28 November 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 486 + 606
Answer: 486 + 606 = 1092 -
2. Algebra
Factorise: 7x² + 4x
Answer: x(7x + 4) -
3. Geometry
Opposite = 16cm, adjacent = 8cm. Calculate the angle
Answer: 63.4° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
A bag has 5 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 5⁄12