Keystones — Cornerstone
Five GCSE retrieval questions · 25 October 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 3⁄4 + 1⁄5
Answer: 19⁄20 -
2. Algebra Two-step equations
Solve: 4x - 14 = 30
Answer: x = 11 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 6cm and b = 13cm. Give your answer to 2 decimal places
Answer: 14.32cm -
4. Ratio Sharing in a ratio
Share 60 in the ratio 2:3
Answer: 24 and 36 -
5. Statistics Mean
Find the mean of: 18, 8, 14, 3, 12
Answer: 11