Keystones — Cornerstone
Five GCSE retrieval questions · 14 November 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 94 + 32
Answer: 94 + 32 = 126 -
2. Algebra
Factorise: 8x² + 5x
Answer: x(8x + 5) -
3. Geometry
Opposite = 9cm, adjacent = 11cm. Calculate the angle
Answer: 39.3° -
4. Ratio
Simplify: 12:6:18
Answer: 2:1:3 -
5. Statistics
A bag has 8 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 8⁄15