Hum, basic arithmetics is mechanical repetition. There may be some benefit to the brain in doing it, but I&#x27;m doubting it until I get evidence.<p>The main benefit is that knowing arithmetics well makes higher mathematics easier to learn. That&#x27;s because one won&#x27;t get distracted doing calculations. That&#x27;s still true on the calculator era, just a bit less so, thus I do think it&#x27;s important to learn arithmetics... It just the &quot;it improves your brain&quot; that I find highly suspect.