Keystones — Cornerstone
Five GCSE retrieval questions · 4 November 2021 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 4⁄7 + 4⁄8
Answer: 15⁄14 -
2. Algebra Two-step equations
Solve: 3x - 5 = 13
Answer: x = 6 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 9cm and 12cm
Answer: 15cm -
4. Ratio Sharing in a ratio
Share 140 in the ratio 3:4
Answer: 60 and 80 -
5. Statistics Mean
Find the mean of: 8, 6, 19
Answer: 11