Solution: 0.6÷0.00 1=600, so: 0.6 includes 600 0.005438+0. Decimal is a special form of real number with a decimal point, which is the dividing line between the integer part and the decimal part of a decimal.

Real numbers can be intuitively regarded as one-to-one correspondence between finite decimals and infinite decimals, and between real numbers and points on the number axis. Decimals with zero integer parts are called pure decimals, and decimals with non-zero integer parts are called decimals.

Decimal point, a mathematical symbol written as ".",is used to separate the integer part from the decimal part in decimal system. Although the decimal point is small, it plays a great role. Because of this humble mistake, mankind has brewed one tragedy after another. It can be described as "a thousand miles away."

Meaning of decimals: Divide the unit 1 into 10, 100, 1000 ... Such one or more fractions can be expressed by fractions with denominators of 10 and 1000 ...

Counting unit of decimals: the counting unit of decimals is one tenth, one hundredth and one thousandth ... Write 0. 1, 0.0 1, 0.00 1 ... The progress rate between every two adjacent counting units is 10. Decimal point movement: the decimal point moves one, two and three places to the right ... The decimal point is correspondingly expanded to 10 times, 100 times and 1000 times of the original decimal point. ...

Mathematical formula is an expression method that people find some connection between things in nature and express it in some way.

It represents the equal or unequal relationship between the quantities of different things in nature, accurately reflects the internal and external relations of things, and is the basis for us to reach another thing from one thing, so as to better understand the essence and connotation of things.