Keystones — Cornerstone
Five GCSE retrieval questions · 20 August 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 34 + 39
Answer: 34 + 39 = 73 -
2. Algebra
What is the next term? 6, 24, 96, 384, ...
Answer: 1536 -
3. Geometry
Opposite = 6cm, hypotenuse = 6.9cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify: 12:6:9
Answer: 4:2:3 -
5. Statistics
Calculate the mean of: 34, 20, 9, 17, 20, 12
Answer: 18.7