Keystones — Cornerstone
Five GCSE retrieval questions · 2 August 2014 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 1⁄5 + 3⁄4
Answer: 19⁄20 -
2. Algebra Two-step equations
Solve: 6x + 11 = 35
Answer: x = 4 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 6cm and b = 8cm
Answer: 10cm -
4. Ratio Sharing in a ratio
Share 112 in the ratio 3:4
Answer: 48 and 64 -
5. Statistics Mean
Find the mean of: 5, 19, 21
Answer: 15