Keystones — Cornerstone
Five GCSE retrieval questions · 29 January 2021 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 3⁄7 + 2⁄4
Answer: 13⁄14 -
2. Algebra Two-step equations
Solve: 4x + 10 = 34
Answer: x = 6 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 7cm and b = 15cm
Answer: 16.55cm -
4. Ratio Sharing in a ratio
Share 55 in the ratio 2:3
Answer: 22 and 33 -
5. Statistics Mean
Find the mean of: 16, 11, 6
Answer: 11