Keystones — Cornerstone
Five GCSE retrieval questions · 20 March 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 92 + 70
Answer: 92 + 70 = 162 -
2. Algebra
Solve: 7x + 8 = x + 44
Answer: x = 6 -
3. Geometry
Find the hypotenuse of a right triangle with sides 3cm and 4cm
Answer: 5cm -
4. Ratio
Simplify: 12:8:4
Answer: 3:2:1 -
5. Statistics
Calculate the mean of: 26, 24, 22, 17, 17, 5, 35, 50
Answer: 24.5