Keystones — Cornerstone
Five GCSE retrieval questions · 19 September 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 3⁄5 + 2⁄3
Answer: 19⁄15 -
2. Algebra Two-step equations
Solve: 4x + 3 = 39
Answer: x = 9 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 4cm and b = 10cm. Give your answer to 2 decimal places
Answer: 10.77cm -
4. Ratio Sharing in a ratio
Share 55 in the ratio 1:4
Answer: 11 and 44 -
5. Statistics Mean
Find the mean of: 8, 16, 3
Answer: 9