Salvete omnes. Does anyone know a good website that informs how do simple math in Latin. Latin Wikipedia has some good examples for addition and subtraction but not for multiplication or division.

Example from Latin Wikipedia:

Additio (-onis, f) operatio arithmetica est.

Formula est: summandus + summandus = summa

Lege: quinque et septem sunt duodecim

Scribe (recenti more): 5 + 7 = 12

The examples for subtraction are almost the same as well, but there are no examples for multiplication or division. I thrive and learn on example! If someone could point me in the right direction for a simple formula for multiplication and division I would really appreciate it.