Keystones — Cornerstone
Five GCSE retrieval questions · 5 April 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 371 + 249
Answer: 371 + 249 = 620 -
2. Algebra
Solve: x + 2 = 18
Answer: x = 16 -
3. Geometry
Opposite = 8cm, hypotenuse = 11.3cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 32:12
Answer: 8:3 -
5. Statistics
Calculate the mean of: 21, 49, 27, 29, 31, 30
Answer: 31.2