Keystones — Cornerstone
Five GCSE retrieval questions · 12 February 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 4⁄10 + 4⁄10
Answer: 4⁄5 -
2. Algebra Two-step equations
Solve: 7x - 10 = 18
Answer: x = 4 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 4cm and b = 12cm. Give your answer to 2 decimal places
Answer: 12.65cm -
4. Ratio Sharing in a ratio
Share 15 in the ratio 1:2
Answer: 5 and 10 -
5. Statistics Mean
Find the mean of: 6, 11, 12, 7
Answer: 9