"Number" refers to the position occupied by each digit of a number. From the right, the first digit in the numerical sequence table is "unit", the second digit is "ten digits", the third digit is "hundred digits", the fourth digit is "thousand digits", the fifth digit is "ten thousand digits", and so on.
The same number represents different values because of different digits and different counting units. For each number, there should be a counting unit. There are infinite natural numbers. In order to solve this problem, people have created a counting system, which is the decimal counting method we are using now.
Extended data
One, ten, one hundred, one thousand, ten thousand, one hundred thousand, one million, ten million, one billion, ten billion, one hundred billion ... are all units of counting. The counting unit on "Unit" is "One" and the counting unit on "Ten" is "Ten".
The rules of decimal reading are as follows:
1 and numbers within four digits can be read from the most significant bit in sequence. For example, 1987 can be read as 1987.
2. For numbers with more than four digits, first grade them by four digits from right to left, and then read out the numbers in each level and their horizontal names in turn from the advanced level.
No matter how many zeros there are at the end of a number, you can't read them. After classification, there is a zero at the end of any level, otherwise it will not be seen. When you need to read them, you can only read one zero, no matter how many zeros are in the middle or how many zeros are in succession, when you need to read them, you can only read one zero.
Speaking of the educational resources in Changning District, we will think of that sentence: "Shanghai 16 District, except the suburbs, is the most bitter but