Keystones — Cornerstone
Five GCSE retrieval questions · 7 December 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 97 + 66
Answer: 97 + 66 = 163 -
2. Algebra
Solve: x + 4 = 23
Answer: x = 19 -
3. Geometry
Opposite = 15cm, adjacent = 13cm. Calculate the angle
Answer: 49.1° -
4. Ratio
Find 52% of 327
Answer: 170.04 -
5. Statistics
A bag has 3 red and 4 blue balls. What is the probability of picking a red ball?
Answer: 3⁄7