Keystones — Cornerstone
Five GCSE retrieval questions · 4 April 2014 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 7⁄8 + 5⁄7
Answer: 89⁄56 -
2. Algebra Two-step equations
Solve: 6x - 6 = 84
Answer: x = 15 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 7cm and b = 13cm. Give your answer to 2 decimal places
Answer: 14.76cm -
4. Ratio Sharing in a ratio
Divide 242 in the ratio 4:4:3
Answer: 88, 88 and 66 -
5. Statistics Mean
Find the mean of: 11, 3, 13
Answer: 9