Keystones — Cornerstone
Five GCSE retrieval questions · 25 August 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 62 + ? = 115
Answer: 53 -
2. Algebra
Solve: x + 2 = 13
Answer: x = 11 -
3. Geometry
Calculate the perimeter of a right triangle with sides 9cm and 10cm
Answer: 32.5cm -
4. Ratio
Simplify: 6:8:10
Answer: 3:4:5 -
5. Statistics
Find the range of: 14, 14, 15, 35, 43
Answer: 29