Keystones — Lintel
Five GCSE retrieval questions · 7 January 2025 · mathsvault.uk/keystones
-
1. Number
The temperature is -12°C. It rises by 13°C. What is the new temperature?
Answer: 1°C -
2. Algebra
Factorise fully: 18x² + 9x
Answer: 3x(6x + 3) -
3. Geometry
Adjacent = 21cm, hypotenuse = 28cm. Find the angle
Answer: 41.4° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
A spinner has 2 red, 4 blue and 4 green sections. Probability of landing on red?
Answer: 1⁄5