Keystones — Cornerstone
Five GCSE retrieval questions · 14 March 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 86 + ? = 115
Answer: 29 -
2. Algebra
Solve: 4x = 24
Answer: x = 6 -
3. Geometry
Calculate perimeter: two sides are 13cm and 6cm at right angles
Answer: 33.3cm -
4. Ratio
Find 69% of 442
Answer: 304.98 -
5. Statistics
Calculate the range of: 86, 38, 38, 82, 47, 108
Answer: 70