Keystones — Lintel
Five GCSE retrieval questions · 6 January 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 996 + 556
Answer: 1552 -
2. Algebra
Factorise fully: 28x² + 20x
Answer: 4x(7x + 5) -
3. Geometry
Opposite = 17cm, adjacent = 10cm. Calculate the angle
Answer: 59.5° -
4. Ratio
Calculate 46.6% of 506
Answer: 235.8 -
5. Statistics
A bag has 5 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 5⁄8