Keystones — Cornerstone
Five GCSE retrieval questions · 6 June 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 4⁄7 + 1⁄7
Answer: 5⁄7 -
2. Algebra Two-step equations
Solve: 2x - 9 = 7
Answer: x = 8 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 8cm and 15cm
Answer: 17cm -
4. Ratio Sharing in a ratio
Divide 260 in the ratio 4:3:3
Answer: 104, 78 and 78 -
5. Statistics Mean
Calculate the mean of: 6, 47, 20, 27, 7, 44, 20
Answer: 24.4