Keystones — Cornerstone
Five GCSE retrieval questions · 25 December 2018 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄4 + 1⁄3
Answer: 5⁄6 -
2. Algebra Two-step equations
Solve: 3x + 7 = 40
Answer: x = 11 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 5cm and b = 11cm
Answer: 12.08cm -
4. Ratio Sharing in a ratio
Share 27 in the ratio 2:1
Answer: 18 and 9 -
5. Statistics Mean
Find the mean of: 14, 15, 18, 7
Answer: 13.5