Keystones — Lintel
Five GCSE retrieval questions · 14 June 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 991 + 559
Answer: 1550 -
2. Algebra
Factorise: 5x² + 5x
Answer: 5x(x + 1) -
3. Geometry
Opposite = 8cm, adjacent = 11cm. Calculate the angle
Answer: 36° -
4. Ratio
Simplify: 16:12:24
Answer: 4:3:6 -
5. Statistics
A bag has 4 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 4⁄7