Keystones — Lintel
Five GCSE retrieval questions · 11 October 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄3 + 3⁄5 + 3⁄5
Answer: 23⁄15 -
2. Algebra
For y = x³ + 11, calculate y when x = 2
Answer: y = 19 -
3. Geometry
A circle has area 615.8cm². Find its radius (dp)
Answer: 14cm -
4. Ratio
Simplify: 10:8:10
Answer: 5:4:5 -
5. Statistics
Find the range of: 20, -17, 17, -8, -30
Answer: 50