Keystones — Cornerstone
Five GCSE retrieval questions · 6 April 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 633 + 817
Answer: 633 + 817 = 1450 -
2. Algebra
Expand: 3(6x + 9)
Answer: 18x + 27 -
3. Geometry
Calculate the distance between (5, 8) and (8, 12)
Answer: 5 -
4. Ratio
Simplify the ratio 9:12
Answer: 3:4 -
5. Statistics
A bag has 6 red and 4 blue balls. What is the probability of picking a red ball?
Answer: 3⁄5