Keystones — Cornerstone
Five GCSE retrieval questions · 15 June 2019 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 2⁄11 + 2⁄11
Answer: 4⁄11 -
2. Algebra Two-step equations
Solve: 5x + 8 = 33
Answer: x = 5 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 4cm and b = 15cm
Answer: 15.52cm -
4. Ratio Sharing in a ratio
Share 36 in the ratio 1:2
Answer: 12 and 24 -
5. Statistics Mean
Find the mean of: 4, 2, 18, 12, 4
Answer: 8