Keystones — Cornerstone
Five GCSE retrieval questions · 7 February 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄7 + 1⁄6
Answer: 19⁄42 -
2. Algebra Two-step equations
Solve: 7x - 19 = 65
Answer: x = 12 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 3cm and b = 14cm. Give your answer to 2 decimal places
Answer: 14.32cm -
4. Ratio Sharing in a ratio
Share 78 in the ratio 1:2
Answer: 26 and 52 -
5. Statistics Mean
Find the mean of: 12, 9, 9
Answer: 10