Keystones — Cornerstone
Five GCSE retrieval questions · 1 July 2023 · mathsvault.uk/keystones
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1. Number
Find the total of 194, 115, and 140
Answer: 449 -
2. Algebra
Solve: x + 12 = 15
Answer: x = 3 -
3. Geometry
Find the hypotenuse of a right triangle with sides 8cm and 15cm
Answer: 17cm -
4. Ratio
Simplify the ratio 18:9
Answer: 2:1 -
5. Statistics
Find the mean of: 16, 3, 3, 6
Answer: 7