Keystones — Lintel
Five GCSE retrieval questions · 14 January 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 73 + ? = 105
Answer: 32 -
2. Algebra
For y = 3x³ + 19, find y when x = 3
Answer: y = 100 -
3. Geometry
Opposite = 15cm, adjacent = 18cm. Calculate the angle
Answer: 39.8° -
4. Ratio
Find 18% of 385
Answer: 69.3 -
5. Statistics
A spinner has 5 red, 3 blue and 3 green sections. Probability of landing on red?
Answer: 5⁄11