Keystones — Cornerstone
Five GCSE retrieval questions · 11 June 2020 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄7 + 2⁄6
Answer: 13⁄21 -
2. Algebra Two-step equations
Solve: 7x + 6 = 69
Answer: x = 9 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 6cm and b = 13cm
Answer: 14.32cm -
4. Ratio Sharing in a ratio
Share 55 in the ratio 1:4
Answer: 11 and 44 -
5. Statistics Mean
Calculate the mean of: 48, 41, 11, 46, 43, 8
Answer: 32.8