Keystones — Cornerstone
Five GCSE retrieval questions · 15 November 2024 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 6⁄8 + 1⁄4
Answer: 1⁄1 -
2. Algebra Two-step equations
Solve: 7x + 11 = 60
Answer: x = 7 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 20cm and 21cm
Answer: 29cm -
4. Ratio Sharing in a ratio
Share 90 in the ratio 1:4
Answer: 18 and 72 -
5. Statistics Mean
Find the mean of: 12, 6, 6
Answer: 8