Keystones — Lintel
Five GCSE retrieval questions · 23 June 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄2 + 1⁄2 + 2⁄4
Answer: 3⁄2 -
2. Algebra
Factorise fully: 21x² + 9x
Answer: 3x(7x + 3) -
3. Geometry
Find the distance between (-1, 0) and (6, 4)
Answer: 8.06 -
4. Ratio
Calculate 37.7% of 635
Answer: 239.4 -
5. Statistics
A spinner has 2 red, 3 blue and 3 green sections. Probability of landing on red?
Answer: 1⁄4