Keystones — Lintel
Five GCSE retrieval questions · 18 November 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 37 + ? = 193
Answer: 156 -
2. Algebra
Solve: x⁄5 = 6.2
Answer: x = 31 -
3. Geometry
Find c if a = 14cm and b = 22cm in a right triangle
Answer: 26.cm -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
Calculate the mean of: 15, 42, 13, 26, 30, 38, 29
Answer: 27.6