Keystones — Cornerstone
Five GCSE retrieval questions · 19 February 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 1⁄8 + 3⁄5
Answer: 29⁄40 -
2. Algebra Two-step equations
Solve: 4x - 6 = 46
Answer: x = 13 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 6cm and 8cm
Answer: 10cm -
4. Ratio Sharing in a ratio
Divide 110 in the ratio 3:4:3
Answer: 33, 44 and 33 -
5. Statistics Mean
Calculate the mean of: 37, 48, 8, 46, 14, 35, 27, 25
Answer: 30