Keystones — Lintel
Five GCSE retrieval questions · 10 November 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 145 + 447
Answer: 145 + 447 = 592 -
2. Algebra
Factorise: 7x² + 6x
Answer: x(7x + 6) -
3. Geometry
Opposite = 9cm, adjacent = 20cm. Calculate the angle
Answer: 24.2° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
A bag has 3 red and 5 blue balls. What is the probability of picking a red ball?
Answer: 3⁄8