Keystones — Cornerstone
Five GCSE retrieval questions · 9 June 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 4⁄6 + 2⁄5
Answer: 16⁄15 -
2. Algebra Two-step equations
Solve: 8x - 16 = 40
Answer: x = 7 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 5cm and b = 13cm. Give your answer to 2 decimal places
Answer: 13.93cm -
4. Ratio Sharing in a ratio
Divide 154 in the ratio 3:1:3
Answer: 66, 22 and 66 -
5. Statistics Mean
Find the mean of: 10, 18, 2
Answer: 10