Keystones — Lintel
Five GCSE retrieval questions · 14 November 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 54 + ? = 112
Answer: 58 -
2. Algebra
Expand: 3(8x - 11)
Answer: 24x - 33 -
3. Geometry
Find c if a = 18cm and b = 18cm in a right triangle
Answer: 25.5cm -
4. Ratio
Find 80% of 230
Answer: 184 -
5. Statistics
A spinner has 5 red, 4 blue and 2 green sections. Probability of landing on red?
Answer: 5⁄11