Arithmetical expressions

 These are either values, variables or calls of functions embedded with these operators:
 +
 -
 *
 /
 mod

Mod is a shortcut for modulo and returns the remainder of a division...

Example of arithmetical expression int x = 20
int y = 50

print (x * 10) + (y / 5)
Display: > 210

Mod returns the remainder of 100 divided by 3 print 100 mod 3
Display: > 1