Keystones — Cornerstone
Five GCSE retrieval questions · 24 April 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 25 + 46
Answer: 25 + 46 = 71 -
2. Algebra
Collect like terms: 4x + 4y + 3x + 6y
Answer: 7x + 10y -
3. Geometry
Calculate the area of a circle with diameter 14cm
Answer: 153.94cm² -
4. Ratio
Calculate 50% of 134
Answer: 67 -
5. Statistics
A bag has 4 red and 6 blue balls. What is the probability of picking a red ball?
Answer: 2⁄5