Keystones — Cornerstone
Five GCSE retrieval questions · 9 November 2024 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 1⁄4 + 3⁄6
Answer: 3⁄4 -
2. Algebra Two-step equations
Solve: 3x - 18 = -6
Answer: x = 4 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 8cm and b = 4cm
Answer: 8.94cm -
4. Ratio Sharing in a ratio
Divide 84 in the ratio 3:2:2
Answer: 36, 24 and 24 -
5. Statistics Mean
Find the mean of: 4, 14, 19, 7
Answer: 11