Keystones — Cornerstone
Five GCSE retrieval questions · 8 June 2014 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 7⁄10 + 2⁄10
Answer: 9⁄10 -
2. Algebra Two-step equations
Solve: 5x + 7 = 67
Answer: x = 12 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 5cm and b = 4cm. Give your answer to 2 decimal places
Answer: 6.4cm -
4. Ratio Sharing in a ratio
Share 60 in the ratio 1:4
Answer: 12 and 48 -
5. Statistics Mean
Find the mean of: 7, 4, 10
Answer: 7