Keystones — Lintel
Five GCSE retrieval questions · 25 October 2021 · mathsvault.uk/keystones
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1. Number
Simplify: 8√4 - 3√4
Answer: 5√4 -
2. Algebra
Solve: 2x = 12
Answer: x = 6 -
3. Geometry
Find c if a = 16cm and b = 24cm in a right triangle
Answer: 28.8cm -
4. Ratio
Calculate 30.7% of 469
Answer: 143.98 -
5. Statistics
Calculate the mean of: 10, 30, 17, 36, 42, 29, 31, 24
Answer: 27.4