Keystones — Cornerstone
Five GCSE retrieval questions · 19 July 2019 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 3⁄6 + 3⁄8
Answer: 7⁄8 -
2. Algebra Two-step equations
Solve: 7x - 17 = 60
Answer: x = 11 -
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 85 in the ratio 1:1:3
Answer: 17, 17 and 51 -
5. Statistics Mean
Find the mean of: 11, 3, 10, 4
Answer: 7