Keystones — Lintel
Five GCSE retrieval questions · 12 September 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 998 + 552
Answer: 1550 -
2. Algebra
Factorise fully: 10x² + 14x
Answer: 2x(5x + 7) -
3. Geometry
Opposite = 16cm, adjacent = 20cm. Calculate the angle
Answer: 38.7° -
4. Ratio
Find 80% of 247
Answer: 197.6 -
5. Statistics
A spinner has 2 red, 5 blue and 4 green sections. Probability of landing on red?
Answer: 2⁄11