Hello, world!
This is an inline formula: \(\alpha = 2, \mathcal A = 3\), and this is a display formula: \[(x+y)\cdot(x-y) = x^2 - y^2\] We can make italic and boldface.
Another display math: \[\int_0^1x\,\mathrm{d}x = \frac12.\]
Students should know:
How to count numbers
How to add and subtract
How to multiply and divide