If you want, memorize the first 25 square numbers and I'll show you how that's useful for certain mental math calculations.
You probably already know 0 squared through 12 squared.
20 squared is a piece of cake.
You're over halfway done already lol.
🫡 🙏 🪶
Oh wait, you gonna teach me how to multiply large numbers? Friends dad used to be able to do that and told me to learn squares... I can do that easy enough, no doubt
Yes, but like every tool, it applies best to certain situations/problems.
If teamed up with other little algorithms and other concepts, the range of situations to which it applies can be extended.
Most math teachers don't take algebra and retroactively apply it to arithmetic for anything other than demonstration/proof purposes. They could dedicate some class time and homework to making the students practice arithmetic problems that, when leveraging certain algebraic concepts (like perfect square binomial/trinomial forms, like difference of squares, etc) are convenient to mentally calculate.
