Keystones — Cornerstone
Five GCSE retrieval questions · 14 May 2015 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄3 + 3⁄4
Answer: 17⁄12 -
2. Algebra Two-step equations
Solve: 4x - 19 = 1
Answer: x = 5 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 8cm and b = 12cm. Give your answer to 2 decimal places
Answer: 14.42cm -
4. Ratio Sharing in a ratio
Share 32 in the ratio 3:1
Answer: 24 and 8 -
5. Statistics Mean
Find the mean of: 4, 10, 16, 6
Answer: 9