Examples (3)
Start an arithmetic quiz
Specify one or more arithmetic [o]peration symbols to get problems on them
arithmetic -o +|-|x|/Specify a [r]ange. Addition and multiplication problems would feature numbers between 0 and range, inclusive. Subtraction and division problems would have required result and number to be operated on, between 0 and range
arithmetic -r 7made by @shridhargupta | data from tldr-pages