Keystones — Cornerstone
Five GCSE retrieval questions · 30 July 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 59 + ? = 192
Answer: 133 -
2. Algebra
Solve: x + 3 = 21
Answer: x = 18 -
3. Geometry
Calculate the perimeter of a right triangle with sides 8cm and 5cm
Answer: 22.4cm -
4. Ratio
Simplify: 24:24:8
Answer: 3:3:1 -
5. Statistics
Find the range of: 20, 25, 43, 43, 18
Answer: 25