Keystones — Cornerstone
Five GCSE retrieval questions · 12 March 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 1⁄6 + 5⁄8
Answer: 19⁄24 -
2. Algebra Two-step equations
Solve: 6x + 14 = 68
Answer: x = 9 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 12cm and 35cm
Answer: 37cm -
4. Ratio Sharing in a ratio
Divide 209 in the ratio 4:4:3
Answer: 76, 76 and 57 -
5. Statistics Mean
Calculate the mean of: 8, 26, 49, 20, 25, 37, 45
Answer: 30