Taxes and maths are two very different things. The math part of taxes usually is easy, what's complex are the countless rules around it, e.g. what can be counted as a deductible expense and what not - additionally, most rules don't even make logical sense as they were written for political reasons (i.e. to appease one or another voter/corporate interest group).

Thinking is an important skill, which is why scientific experiments, essay writing and philosophy are so important. Integrating equations, not important.