Keystones — Cornerstone
Five GCSE retrieval questions · 6 May 2018 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 5⁄7 + 2⁄3
Answer: 29⁄21 -
2. Algebra Two-step equations
Solve: 6x - 11 = 43
Answer: x = 9 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 7cm and b = 13cm
Answer: 14.76cm -
4. Ratio Sharing in a ratio
Share 27 in the ratio 2:1
Answer: 18 and 9 -
5. Statistics Mean
Find the mean of: 15, 20, 14, 11
Answer: 15