Keystones — Cornerstone
Five GCSE retrieval questions · 12 January 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 961 + 962
Answer: 961 + 962 = 1923 -
2. Algebra
Find the next term: 17, 19, 21, 23, ...
Answer: 25 -
3. Geometry
Opposite = 15cm, adjacent = 18cm. Calculate the angle
Answer: 39.8° -
4. Ratio
Simplify the ratio 6:14
Answer: 3:7 -
5. Statistics
A bag has 8 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 1⁄2