Keystones — Cornerstone
Five GCSE retrieval questions · 5 June 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 6⁄7 + 2⁄5
Answer: 44⁄35 -
2. Algebra Two-step equations
Solve: 4x - 19 = -3
Answer: x = 4 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 10cm and b = 13cm
Answer: 16.4cm -
4. Ratio Sharing in a ratio
Divide 144 in the ratio 2:3:3
Answer: 36, 54 and 54 -
5. Statistics Mean
Calculate the mean of: 22, 20, 26, 25, 18, 15, 26
Answer: 21.7