Keystones — Cornerstone
Five GCSE retrieval questions · 14 April 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 45 + 36
Answer: 45 + 36 = 81 -
2. Algebra
Solve: x + 14 = 17
Answer: x = 3 -
3. Geometry
Opposite = 9cm, hypotenuse = 18cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 25% of 118
Answer: 29.5 -
5. Statistics
Calculate the range of: 55, 35, 39, 66, 50, 59
Answer: 31