Keystones — Cornerstone
Five GCSE retrieval questions · 2 February 2021 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 3⁄4 + 7⁄8
Answer: 13⁄8 -
2. Algebra Two-step equations
Solve: 4x + 14 = 38
Answer: x = 6 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 11cm and b = 6cm
Answer: 12.53cm -
4. Ratio Sharing in a ratio
Share 102 in the ratio 1:2
Answer: 34 and 68 -
5. Statistics Mean
Find the mean of: 14, 18, 12
Answer: 14.666666666667