Keystones — Lintel
Five GCSE retrieval questions · 22 June 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 298 + 124
Answer: 298 + 124 = 422 -
2. Algebra
Factorise: 3x² + 9x
Answer: 3x(x + 3) -
3. Geometry
A right triangle has hypotenuse 5cm and one side 3cm. Find its area
Answer: 6cm² -
4. Ratio
Find 85% of 229
Answer: 194.65 -
5. Statistics
A spinner has 2 red, 6 blue and 3 green sections. Probability of landing on red?
Answer: 2⁄11