Keystones — Cornerstone
Five GCSE retrieval questions · 30 March 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 225 + 165
Answer: 225 + 165 = 390 -
2. Algebra
Solve: 6x = 36
Answer: x = 6 -
3. Geometry
Opposite = 14cm, hypotenuse = 19.8cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 6:15
Answer: 2:5 -
5. Statistics
Calculate the range of: 54, 63, 53, 24, 64, 33
Answer: 40