Keystones — Lintel
Five GCSE retrieval questions · 23 July 2021 · mathsvault.uk/keystones
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1. Number
Three lengths are 4.67m, 3.27m and 1.81m. What is their total length?
Answer: 9.75m -
2. Algebra
Factorise: 4x² + 9x
Answer: x(4x + 9) -
3. Geometry
Adjacent = 16cm, hypotenuse = 34cm. Find the angle
Answer: 61.9° -
4. Ratio
Simplify: 12:18:15
Answer: 4:6:5 -
5. Statistics
A spinner has 3 red, 4 blue and 3 green sections. Probability of landing on red?
Answer: 3⁄10