Keystones — Cornerstone
Five GCSE retrieval questions · 30 June 2013 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 1⁄6 + 4⁄6
Answer: 5⁄6 -
2. Algebra Two-step equations
Solve: 7x + 10 = 87
Answer: x = 11 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 11cm and b = 9cm. Give your answer to 2 decimal places
Answer: 14.21cm -
4. Ratio Sharing in a ratio
Share 70 in the ratio 1:4
Answer: 14 and 56 -
5. Statistics Mean
Find the mean of: 11, 16, 19, 14
Answer: 15