1, positive number is a mathematical term, numbers greater than 0 are called positive numbers, and 0 itself is not a positive number. Positive numbers and negative numbers represent quantities with opposite meanings. Positive numbers are usually preceded by a symbol "+",which can usually be omitted, indicating the antonym of 2. On the number axis, positive numbers are all on the right side of 0, and the earliest record of positive numbers is China's ancient mathematical work "Nine Chapters Arithmetic".

2. Negative number is a mathematical term. Numbers less than 0 are called negative numbers, and negative numbers and positive numbers represent quantities with opposite meanings. Negative numbers are marked with minus sign (minus sign) "-"and positive numbers, such as? 2 stands for the antonym of 2. Therefore, any positive number preceded by a negative sign becomes a negative number.

Extended data:

Application:

Negative numbers can be widely used in temperature, floor, altitude, water level, profit, increase and decrease of output, expenditure/income, score/deduction and so on. Now I am in the sixth grade of primary school. There is also a first-grade study.

Historical data prove that Chinese people began to use negative numbers more than 200 years ago and applied them to production and life. For example, in ancient commercial activities, income was positive and expenditure was negative; The surplus is positive and the debt is negative. In ancient agricultural activities, increasing production was positive and reducing production was negative. China people use negative numbers first in the world.

References:

Baidu encyclopedia-positive number? Baidu encyclopedia-negative number