Keystones — Cornerstone
Five GCSE retrieval questions · 11 May 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 1⁄3 + 2⁄6
Answer: 2⁄3 -
2. Algebra Two-step equations
Solve: 3x + 10 = 19
Answer: x = 3 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 8cm and b = 14cm
Answer: 16.12cm -
4. Ratio Sharing in a ratio
Share 49 in the ratio 3:4
Answer: 21 and 28 -
5. Statistics Mean
Find the mean of: 11, 18, 8
Answer: 12.333333333333