Keystones — Cornerstone
Five GCSE retrieval questions · 5 October 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 1⁄8 + 5⁄6
Answer: 23⁄24 -
2. Algebra Two-step equations
Solve: 5x - 12 = 13
Answer: x = 5 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 12cm and 35cm
Answer: 37cm -
4. Ratio Sharing in a ratio
Share 55 in the ratio 4:1
Answer: 44 and 11 -
5. Statistics Mean
Find the mean of: 5, 20, 4, 11, 11
Answer: 10.2