Keystones — Cornerstone
Five GCSE retrieval questions · 26 November 2021 · mathsvault.uk/keystones
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1. Number
Calculate: -8 + (-2)
Answer: -10 -
2. Algebra
Solve: x + 10 = 18
Answer: x = 8 -
3. Geometry
Opposite = 12cm, hypotenuse = 24cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify: 6:4:8
Answer: 3:2:4 -
5. Statistics
Find the mean of: 13, 5, 7
Answer: 8.3333333333333