Keystones — Cornerstone
Five GCSE retrieval questions · 30 September 2021 · mathsvault.uk/keystones
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1. Number
Find the total of 168, 285, and 51
Answer: 504 -
2. Algebra
Solve: 4x = 36
Answer: x = 9 -
3. Geometry
Opposite = 15cm, hypotenuse = 21.2cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify: 20:24:24
Answer: 5:6:6 -
5. Statistics
Calculate the range of: 35, 44, 32, 91, 51, 68
Answer: 59