Keystones — Cornerstone
Five GCSE retrieval questions · 28 May 2018 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 4⁄7 + 1⁄3
Answer: 19⁄21 -
2. Algebra Two-step equations
Solve: 4x + 6 = 34
Answer: x = 7 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 12cm and 35cm
Answer: 37cm -
4. Ratio Sharing in a ratio
Share 70 in the ratio 4:1
Answer: 56 and 14 -
5. Statistics Mean
Find the mean of: 8, 11, 17, 7, 18
Answer: 12.2