Keystones — Lintel
Five GCSE retrieval questions · 28 April 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 47 + ? = 192
Answer: 145 -
2. Algebra
Solve: 6x = 84
Answer: x = 14 -
3. Geometry
Find the distance between (-8, -6) and (7, 12)
Answer: 23.43 -
4. Ratio
Simplify: 20:16:20
Answer: 5:4:5 -
5. Statistics
Calculate the mean of: 36, 13, 42, 44, 48, 39, 36
Answer: 36.9