Keystones — Cornerstone
Five GCSE retrieval questions · 6 January 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 79 + 60
Answer: 79 + 60 = 139 -
2. Algebra
Solve: x + 12 = 25
Answer: x = 13 -
3. Geometry
Find the hypotenuse of a right triangle with sides 3cm and 4cm
Answer: 5cm -
4. Ratio
Simplify the ratio 16:8
Answer: 2:1 -
5. Statistics
Find the range of: 40, 26, 30, 19, 30
Answer: 21