n-ary mathematical operator: minus; subtraction operator; [(((a - b) - c) - ...)].

- su'i
- n-ary mathematical operator: plus; addition operator; [(((a + b) + c) + ...)].
- selsumji
- x
_{1}is the difference x_{2}minus x_{3}; x_{1}is the amount that remains in substracting x_{3}from x_{2}. - vujnu
- x
_{1}is the subtraction-difference of x_{2}and x_{3}(and x_{4}etc.); x_{1 }= x_{2 - x}[ - x_{4}etc.] - ma'oi'e
*(exp!)* - Like "ma'oi" but outputs the officially-designated/canonical sub-selma'o (if any) to which the immediately following and quoted word (cmavo) belongs, otherwise outputting the whole relevant selma'o in fashion equivalent to "ma'oi".
- pau'oi
*(exp!)* - unary mathematical operator: predecessor/diminish/decrement (by one), \operatornamepred(a) = a-- = a-1
- te'o'a
*(exp!)* - unary mekso operator: natural exponentiation operator exp, where exp(a) = e
^{a \forall a}. - vu'ai
- base-dependent digit: the maximum possible single-digit number expressible in the relevant number base.
- cu'alvu'u
- x
_{1}is the absolute difference of numbers x_{2}and x_{3}; x_{1 }= |x_{2 - x}