Keystones — Cornerstone
Five GCSE retrieval questions · 12 November 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 4⁄5 + 1⁄3
Answer: 17⁄15 -
2. Algebra Two-step equations
Solve: 4x - 9 = 51
Answer: x = 15 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 11cm and b = 7cm. Give your answer to 2 decimal places
Answer: 13.04cm -
4. Ratio Sharing in a ratio
Divide 232 in the ratio 4:3:1
Answer: 116, 87 and 29 -
5. Statistics Mean
Find the mean of: 19, 6, 24, 11
Answer: 15