3 ms·
There are other fun tricks for squares like this: https://blog.jgc.org/2010/03/squaring-two-digit-numbers-in-your-head.html https://blog.jgc.org/2010/03/squarin
by jgrahamc 2y ago
There are other fun tricks for squares like this: https://blog.jgc.org/2010/03/squaring-two-digit-numbers-in-your-head.html https://blog.jgc.org/2010/03/squaring-two-digit-numbers-in-y...
- sahmeepee 2y agoThanks - the comments are worth reading too