Keystones — Cornerstone
Five GCSE retrieval questions · 14 April 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 1⁄6 + 4⁄8
Answer: 2⁄3 -
2. Algebra Two-step equations
Solve: 4x + 7 = 47
Answer: x = 10 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 11cm and b = 9cm
Answer: 14.21cm -
4. Ratio Sharing in a ratio
Share 80 in the ratio 2:3
Answer: 32 and 48 -
5. Statistics Mean
Find the mean of: 6, 9, 14, 8, 6
Answer: 8.6