Keystones — Cornerstone
Five GCSE retrieval questions · 1 June 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄6 + 4⁄8
Answer: 5⁄6 -
2. Algebra Two-step equations
Solve: 2x - 5 = 7
Answer: x = 6 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 8cm and b = 6cm
Answer: 10cm -
4. Ratio Sharing in a ratio
Share 35 in the ratio 3:4
Answer: 15 and 20 -
5. Statistics Mean
Calculate the mean of: 16, 9, 47, 28, 21, 29
Answer: 25