The term you're looking for is "minuend." In subtraction, the minuend is the number from which another number (the subtrahend) is subtracted. The result of the subtraction is called the "difference."
adding
Difference. A sum is the result of adding two numbers, and a difference is the result of subtracting two numbers.
100
-31
Adding or subtracting zero cant, multiplying or dividing by zero can.
adding
The sum is the answer for adding and the difference is the answer for subtracting...
a difference
Difference. A sum is the result of adding two numbers, and a difference is the result of subtracting two numbers.
100
not necessarily
-31
when you add numbers, you get a sum. when you subtract numbers, you get a difference. (also in multiplication it's product, and in division is quotient.)
Adding or subtracting zero cant, multiplying or dividing by zero can.
423 + 525 - 112 = 836
-2
25