List

Powers and roots

Power Countdown
problem
Favourite

Power countdown

Age
14 to 16
Challenge level
filled star empty star empty star
In this twist on the well-known Countdown numbers game, use your knowledge of Powers and Roots to make a target.
Generating Triples
problem
Favourite

Generating triples

Age
14 to 16
Challenge level
filled star empty star empty star
Sets of integers like 3, 4, 5 are called Pythagorean Triples, because they could be the lengths of the sides of a right-angled triangle. Can you find any more?