Keystones — Cornerstone
Five GCSE retrieval questions · 13 August 2017 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 5⁄11 + 2⁄11
Answer: 7⁄11 -
2. Algebra Two-step equations
Solve: 4x + 15 = 63
Answer: x = 12 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 7cm and b = 12cm. Give your answer to 2 decimal places
Answer: 13.89cm -
4. Ratio Sharing in a ratio
Share 100 in the ratio 2:3
Answer: 40 and 60 -
5. Statistics Mean
Find the mean of: 15, 7, 16, 6
Answer: 11