Keystones — Cornerstone
Five GCSE retrieval questions · 29 March 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 68 + 22
Answer: 68 + 22 = 90 -
2. Algebra
Expand: 7(x + 9)
Answer: 7x + 63 -
3. Geometry
Opposite = 9cm, adjacent = 18cm. Calculate the angle
Answer: 26.6° -
4. Ratio
Calculate 10% of 28
Answer: 2.8 -
5. Statistics
Calculate the range of: 74, 108, 79, 37, 95, 91
Answer: 71