Keystones — Cornerstone
Five GCSE retrieval questions · 2 June 2019 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄6 + 4⁄7
Answer: 19⁄21 -
2. Algebra Two-step equations
Solve: 8x - 12 = 100
Answer: x = 14 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 7cm and b = 4cm
Answer: 8.06cm -
4. Ratio Sharing in a ratio
Share 96 in the ratio 1:2
Answer: 32 and 64 -
5. Statistics Mean
Calculate the mean of: 14, 34, 12, 37, 50, 36, 29, 39
Answer: 31.4