Keystones — Cornerstone
Five GCSE retrieval questions · 15 November 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 65 + ? = 127
Answer: 62 -
2. Algebra
Solve: 4x = 44
Answer: x = 11 -
3. Geometry
Opposite = 14cm, hypotenuse = 16.2cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Find 15% of 297
Answer: 44.55 -
5. Statistics
What is the probability of rolling a 4 on a fair die?
Answer: 1⁄6