Keystones — Cornerstone
Five GCSE retrieval questions · 19 June 2016 · 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: 4x + 14 = 42
Answer: x = 7 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 7cm and b = 11cm. Give your answer to 2 decimal places
Answer: 13.04cm -
4. Ratio Sharing in a ratio
Share 100 in the ratio 4:1
Answer: 80 and 20 -
5. Statistics Mean
Find the mean of: 13, 5, 19, 3
Answer: 10