I am excellent at arithmetic (mental math) and can do "beat the calculator" party tricks. I fall flat on my face with actual math (algebra onwards). Thankfull

I am excellent at arithmetic (mental math) and can do "beat the calculator" party tricks. I fall flat on my face with actual math (algebra onwards). Thankfully, despite the teachings, the engineering I do is heavier on mental math skills. Anything more advanced and we use tools to do it.