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How to write the name of the formula?
Complement+complement = sum, minuend-minuend = difference.

Name of each part of addition: 4+5=9, where: 4 is the addend,+is the plus sign, 5 is the addend, = is the equal sign, and 9 is the sum. Expression: Addendum+Addendum = sum. The names of the three main parts in the subtraction formula are "minuend", "subtraction" and "difference" The simplest subtraction formula consists of minuend, subtraction, difference and subtraction symbol.

Name of each part of multiplication formula: Multiplier × Multiplier = Product. Multiply two numbers, then both numbers are called multipliers. Arithmetically, the product of multiplying two numbers is the product.