In subtraction, the known sum is called the minuend, the subtracted addend is called subtraction, and the result is called difference. Expressed in letters: a-b=c, A is called minuend, B is called subtraction, and C is called difference. Such as 95-6=89. 95 is called minuend, 6 is called minuend, and 89 is called difference.
Subtraction is one of the basic operations in mathematics. Two numbers a and b are known. If there is a number c that satisfies b+c=a, then c is called the difference between a and b (and the difference is unique). The operation of finding the difference between two numbers is called subtraction, which is recorded as a-b=c, and pronounced as A minus B equals C, A is called the minuend, and B is called the minus sign.
Given the sum of two addends and one of them, in the operation of finding the other addend, the minuend cannot be less than the minuend in the arithmetic that can only use positive numbers. Especially, for any number a, there are always a-a=0, a-0=a, and 0-0=0. After introducing negative numbers and negative signs, subtraction can be unified with addition, that is, A-B = A.