Keystones — Cornerstone
Five GCSE retrieval questions · 21 September 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 89 + 83
Answer: 89 + 83 = 172 -
2. Algebra
Expand: 4(6x + 7)
Answer: 24x + 28 -
3. Geometry
Opposite = 7cm, hypotenuse = 14cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify: 8:12:8
Answer: 2:3:2 -
5. Statistics
Calculate the range of: 20, 39, 66, 58, 43, 28
Answer: 46