Keystones — Cornerstone
Five GCSE retrieval questions · 11 June 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄6 + 2⁄3
Answer: 1⁄1 -
2. Algebra Two-step equations
Solve: 2x + 9 = 27
Answer: x = 9 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 7cm and 24cm
Answer: 25cm -
4. Ratio Sharing in a ratio
Divide 176 in the ratio 1:3:4
Answer: 22, 66 and 88 -
5. Statistics Mean
Find the mean of: 12, 16, 11, 8, 8
Answer: 11