Keystones — Cornerstone
Five GCSE retrieval questions · 17 November 2024 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 3⁄7 + 1⁄6
Answer: 25⁄42 -
2. Algebra Two-step equations
Solve: 6x - 18 = 42
Answer: x = 10 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 3cm and 4cm
Answer: 5cm -
4. Ratio Sharing in a ratio
Share 78 in the ratio 1:2
Answer: 26 and 52 -
5. Statistics Mean
Calculate the mean of: 26, 5, 40, 34, 27, 44
Answer: 29.3