Keystones — Lintel
Five GCSE retrieval questions · 9 October 2026 · mathsvault.uk/keystones
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1. Number Four operations with fractions
Add: 3⁄5 + 1⁄8
Answer: 29⁄40 -
2. Algebra Inequalities with unknowns on both sides
Solve: 7x + 4 ≤ x - 9
Answer: x ≤ 2.2 -
3. Geometry Speed, distance and time
A cyclist travels 123km in 6 hours. What is their average speed?
Answer: 20.5km/h -
4. Ratio Ratio given the difference
A and B share in ratio 8:7. If the difference is 28, what does A get?
Answer: 224 -
5. Statistics Simple probability
A bag has 3 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 3⁄10