Keystones — Cornerstone
Five GCSE retrieval questions · 26 June 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 6⁄8 + 1⁄7
Answer: 25⁄28 -
2. Algebra Two-step equations
Solve: 8x - 13 = 19
Answer: x = 4 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 9cm and 12cm
Answer: 15cm -
4. Ratio Sharing in a ratio
Divide 80 in the ratio 2:1:2
Answer: 32, 16 and 32 -
5. Statistics Mean
Find the mean of: 4, 3, 16, 8, 6
Answer: 7.4