Keystones — Cornerstone
Five GCSE retrieval questions · 25 December 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 2⁄6 + 1⁄6
Answer: 1⁄2 -
2. Algebra
Solve: x + 10 = 16
Answer: x = 6 -
3. Geometry
Calculate the distance between (5, 6) and (8, 10)
Answer: 5 -
4. Ratio
Simplify: 10:10:4
Answer: 5:5:2 -
5. Statistics
A bag has 8 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 1⁄2