Keystones — Cornerstone
Five GCSE retrieval questions · 18 July 2014 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 1⁄8 + 1⁄3
Answer: 11⁄24 -
2. Algebra Two-step equations
Solve: 5x + 5 = 45
Answer: x = 8 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 5cm and b = 6cm. Give your answer to 2 decimal places
Answer: 7.81cm -
4. Ratio Sharing in a ratio
Share 65 in the ratio 3:2
Answer: 39 and 26 -
5. Statistics Mean
Find the mean of: 11, 19, 16, 2, 2
Answer: 10