Keystones — Bedrock
Five GCSE retrieval questions · 5 August 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 23 + 40
Answer: 23 + 40 = 63 -
2. Algebra
Factorise: 12x + 15
Answer: 3(4x + 5) -
3. Geometry
Opposite = 15cm, hypotenuse = 21.2cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
In ratio 5:4, the difference between shares is 14. What are the shares?
Answer: 70 and 56 -
5. Statistics
Find the mean of: 10, 7, 18
Answer: 11.666666666667