Keystones — Lintel
Five GCSE retrieval questions · 3 April 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 785 + 882
Answer: 785 + 882 = 1667 -
2. Algebra
Find the next term: 1, 3, 7, 13, ...
Answer: 21 -
3. Geometry
Opposite = 10cm, adjacent = 19cm. Calculate the angle
Answer: 27.8° -
4. Ratio
Calculate 44% of 750
Answer: 330 -
5. Statistics
A bag has 7 red and 5 blue balls. What is the probability of picking a red ball?
Answer: 7⁄12