Keystones — Cornerstone
Five GCSE retrieval questions · 10 July 2024 · mathsvault.uk/keystones
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1. Number
Add: 3⁄4 + 2⁄3
Answer: 17⁄12 -
2. Algebra
Solve: 9x = 63
Answer: x = 7 -
3. Geometry
Opposite = 12cm, adjacent = 19cm. Calculate the angle
Answer: 32.3° -
4. Ratio
Find 25% of 191
Answer: 47.75 -
5. Statistics
A bag has 4 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 4⁄11