Keystones — Lintel
Five GCSE retrieval questions · 1 June 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 43 + ? = 168
Answer: 125 -
2. Algebra
For y = x³ + 10, calculate y when x = 4
Answer: y = 74 -
3. Geometry
A right triangle has hypotenuse 13cm and one side 5cm. Find its area
Answer: 30cm² -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
A spinner has 6 red, 5 blue and 2 green sections. Probability of landing on red?
Answer: 6⁄13