Keystones — Cornerstone
Five GCSE retrieval questions · 2 March 2018 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 6⁄7 + 1⁄8
Answer: 55⁄56 -
2. Algebra Two-step equations
Solve: 2x - 9 = -1
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 30 in the ratio 2:1
Answer: 20 and 10 -
5. Statistics Mean
Find the mean of: 5, 14, 17
Answer: 12