Keystones — Cornerstone
Five GCSE retrieval questions · 21 September 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 389 + 637
Answer: 389 + 637 = 1026 -
2. Algebra
Solve: 8x = 64
Answer: x = 8 -
3. Geometry
Opposite = 7cm, hypotenuse = 9.9cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify: 15:15:18
Answer: 5:5:6 -
5. Statistics
Calculate the range of: 91, 97, 27, 86, 96, 42
Answer: 70