Keystones — Cornerstone
Five GCSE retrieval questions · 8 July 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 88 + 82
Answer: 88 + 82 = 170 -
2. Algebra
Solve: 8x = 88
Answer: x = 11 -
3. Geometry
Find the perimeter of a right triangle with sides 6cm, 8cm, 10cm
Answer: 24cm -
4. Ratio
Simplify the ratio 12:16
Answer: 3:4 -
5. Statistics
Calculate the range of: 85, 70, 45, 46, 68, 41
Answer: 44