Keystones — Lintel
Five GCSE retrieval questions · 12 April 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 57 + ? = 135
Answer: 78 -
2. Algebra
Expand: 2(3x + 6)
Answer: 6x + 12 -
3. Geometry
Adjacent = 24cm, hypotenuse = 29cm. Find the angle
Answer: 34.1° -
4. Ratio
Simplify: 12:12:15
Answer: 4:4:5 -
5. Statistics
A spinner has 3 red, 4 blue and 5 green sections. Probability of landing on red?
Answer: 1⁄4