Four alternatives to the four fours
The "Four Fours" is a very well-known little problem that encourages some creative thinking and use of the order of operations. The purpose of this post is to show you four fourfoursesque puzzles I've created which have encouraged some great learning.
The titles of the three posts in the series are:
- Four alternatives to the four fours
- A day of maths: Zero Zeros
- The second part of the four fours
听
听