Keystones — Cornerstone
Five GCSE retrieval questions · 3 July 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 5⁄7 + 3⁄6
Answer: 17⁄14 -
2. Algebra Two-step equations
Solve: 7x - 9 = 89
Answer: x = 14 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 10cm and b = 12cm. Give your answer to 2 decimal places
Answer: 15.62cm -
4. Ratio Sharing in a ratio
Divide 253 in the ratio 3:4:4
Answer: 69, 92 and 92 -
5. Statistics Mean
Find the mean of: 9, 17, 17, 9
Answer: 13