Why can't we simply understand the concepts of positive and negative numbers as follows: the number with "+" is positive, and the number with "-" is negative

Why can't we simply understand the concepts of positive and negative numbers as follows: the number with "+" is positive, and the number with "-" is negative

The definition of a positive number is: a number larger than 0 is called a positive number. A positive number can be preceded by a positive sign "+", but this is only a way to express a positive number, not the actual meaning of the positive number itself, because a positive number can be represented without a "+" sign, such as 7, 9, etc., and it is also true for negative numbers, But it's not the same as their actual meaning

What is the meaning of the quantity represented by positive and negative numbers

Positive and negative numbers denote quantities with opposite meanings. If east is positive, West is negative

Positive and negative numbers are quantities with opposite meanings______ (judge right or wrong)

Positive and negative numbers can be used to express opposite quantities, which is correct

______ And______ The quantity expressed has the opposite meaning

Positive numbers and negative numbers have opposite meanings, so the answer is: positive numbers and negative numbers