Keystones — Cornerstone
Five GCSE retrieval questions · 14 January 2017 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 2⁄6 + 2⁄6
Answer: 2⁄3 -
2. Algebra Two-step equations
Solve: 7x + 10 = 52
Answer: x = 6 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 3cm and b = 12cm. Give your answer to 2 decimal places
Answer: 12.37cm -
4. Ratio Sharing in a ratio
Share 85 in the ratio 1:4
Answer: 17 and 68 -
5. Statistics Mean
Find the mean of: 8, 11, 2
Answer: 7