Keystones — Cornerstone
Five GCSE retrieval questions · 6 March 2026 · mathsvault.uk/keystones
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1. Number Multiplying fractions
Multiply: 1⁄6 × 4⁄8
Answer: 1⁄12 -
2. Algebra Expanding single brackets
Expand: 4(x + 8)
Answer: 4x + 32 -
3. Geometry Pythagoras — short side
In a right triangle, if c = 10cm and a = 6cm, find b
Answer: 8cm -
4. Ratio Ratio given the difference
A and B share in ratio 5:2. If the difference is 96, what does A get?
Answer: 160 -
5. Statistics Range
Calculate the range of: 98, 47, 120, 68, 120, 93
Answer: 73