Keystones — Cornerstone
Five GCSE retrieval questions · 15 April 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄3 + 2⁄5
Answer: 16⁄15 -
2. Algebra Two-step equations
Solve: 5x - 8 = 67
Answer: x = 15 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 3cm and b = 7cm. Give your answer to 2 decimal places
Answer: 7.62cm -
4. Ratio Sharing in a ratio
Share 33 in the ratio 1:2
Answer: 11 and 22 -
5. Statistics Mean
Find the mean of: 5, 18, 19
Answer: 14