Keystones — Cornerstone
Five GCSE retrieval questions · 2 November 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 93 + ? = 130
Answer: 37 -
2. Algebra
Solve: x + 4 = 12
Answer: x = 8 -
3. Geometry
Find the hypotenuse of a right triangle with sides 8cm and 15cm
Answer: 17cm -
4. Ratio
Simplify: 6:12:18
Answer: 1:2:3 -
5. Statistics
Calculate the range of: 30, 72, 95, 38, 42, 32
Answer: 65