Keystones — Lintel
Five GCSE retrieval questions · 13 August 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 49 + ? = 134
Answer: 85 -
2. Algebra
Solve: 7x + 10 = 2x - 4
Answer: x = 2.8 -
3. Geometry
Find c if a = 9cm and b = 12cm in a right triangle
Answer: 15cm -
4. Ratio
Calculate 47.8% of 722
Answer: 345.12 -
5. Statistics
Calculate the mean of: 44, 36, 47, 23, 26, 33, 46
Answer: 36.4