Keystones — Cornerstone
Five GCSE retrieval questions · 22 February 2013 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 6⁄10 + 1⁄10
Answer: 7⁄10 -
2. Algebra Two-step equations
Solve: 3x - 14 = 1
Answer: x = 5 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 20cm and 21cm
Answer: 29cm -
4. Ratio Sharing in a ratio
Share 36 in the ratio 2:1
Answer: 24 and 12 -
5. Statistics Mean
Find the mean of: 8, 14, 11
Answer: 11