Keystones — Lintel
Five GCSE retrieval questions · 26 February 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 78 + ? = 197
Answer: 119 -
2. Algebra
Solve: 5x + 5 = 2x - 10
Answer: x = 5 -
3. Geometry
Find the distance between (-8, -8) and (3, 12)
Answer: 22.83 -
4. Ratio
Simplify: 4:10:4
Answer: 2:5:2 -
5. Statistics
A spinner has 2 red, 4 blue and 2 green sections. Probability of landing on red?
Answer: 1⁄4