Keystones — Lintel
Five GCSE retrieval questions · 28 March 2026 · mathsvault.uk/keystones
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1. Number Four operations with fractions
Calculate: 1⁄5 + 1⁄2 + 3⁄6
Answer: 6⁄5 -
2. Algebra Inequalities with unknowns on both sides
Solve: 7x - 5 > 5x + 9
Answer: x > 7 -
3. Geometry Speed, distance and time
How long does it take to travel 213km at 54km/h?
Answer: 3.9 hours -
4. Ratio Ratio given the difference
In ratio 3:1, the difference between shares is 216. What is the total?
Answer: 432 -
5. Statistics Simple probability
A bag has 3 red and 4 blue balls. What is the probability of picking a red ball?
Answer: 3⁄7