Keystones — Cornerstone
Five GCSE retrieval questions · 27 May 2017 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 2⁄6 + 3⁄6
Answer: 5⁄6 -
2. Algebra Two-step equations
Solve: 7x + 4 = 39
Answer: x = 5 -
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 75 in the ratio 4:1
Answer: 60 and 15 -
5. Statistics Mean
Find the mean of: 3, 3, 15, 11
Answer: 8