Keystones — Cornerstone
Five GCSE retrieval questions · 22 November 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 5⁄7 + 1⁄7
Answer: 6⁄7 -
2. Algebra Two-step equations
Solve: 5x + 14 = 64
Answer: x = 10 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 15cm and 36cm
Answer: 39cm -
4. Ratio Sharing in a ratio
Share 30 in the ratio 1:2
Answer: 10 and 20 -
5. Statistics Mean
Find the mean of: 10, 17, 12
Answer: 13