Keystones — Cornerstone
Five GCSE retrieval questions · 3 June 2018 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 6⁄7 + 5⁄6
Answer: 71⁄42 -
2. Algebra Two-step equations
Solve: 2x + 7 = 15
Answer: x = 4 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 5cm and 12cm
Answer: 13cm -
4. Ratio Sharing in a ratio
Share 91 in the ratio 4:3
Answer: 52 and 39 -
5. Statistics Mean
Find the mean of: 18, 9, 15
Answer: 14