Keystones — Cornerstone
Five GCSE retrieval questions · 19 June 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 64 + 88
Answer: 64 + 88 = 152 -
2. Algebra
Factorise: 5x² + 8x
Answer: x(5x + 8) -
3. Geometry
Find the distance between (3, 2) and (9, 9)
Answer: 9.22 -
4. Ratio
Find 76% of 153
Answer: 116.28 -
5. Statistics
A bag has 7 red and 5 blue balls. What is the probability of picking a red ball?
Answer: 7⁄12