Keystones — Bedrock
Five GCSE retrieval questions · 23 November 2024 · mathsvault.uk/keystones
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1. Number
Calculate: -1 + (-4)
Answer: -5 -
2. Algebra
Factorise: 15x + 25
Answer: 5(3x + 5) -
3. Geometry
Opposite = 8cm, hypotenuse = 16cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 25% of 191
Answer: 47.75 -
5. Statistics
Find the mean of: 8, 9, 3
Answer: 6.6666666666667