Keystones — Cornerstone
Five GCSE retrieval questions · 26 April 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 27 + 51
Answer: 27 + 51 = 78 -
2. Algebra
Solve: x + 2 = 12
Answer: x = 10 -
3. Geometry
Opposite = 8cm, hypotenuse = 9.2cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify: 6:6:18
Answer: 1:1:3 -
5. Statistics
Calculate the range of: 94, 60, 41, 88, 82, 47
Answer: 53