Knowledge points of handwritten newspaper content:

1, meaning of integer

Natural numbers and 0 are integers.

2. Natural numbers

When we count objects, 1, 2, 3 used to represent the number of objects are called natural numbers. There is no object, which is represented by 0. 0 is also a natural number.

3. Counting unit

One (1), ten, hundred, thousand, ten thousand, one hundred thousand, one million, ten million and one hundred million are all counting units. Where "one" is the basic unit of counting. 10 1 Yes 10, 10 is 100, and the advance rate between every two adjacent counting units is10. This counting method is called decimal counting method.

4. Numeric counting units are arranged in a certain order, and their positions are called numbers.

5. How to read integers: from high to low, read step by step. When reading the 110 million level, first read according to the reading method of the 100 million level, and then add a word "100 million" or "10 thousand" at the end. The zeros at the end of each stage are not read, and only a few zeros of other digits are read.

6. Writing of integers: from high to low, writing step by step. If there is no unit on any number, write 0 on that number.

7. In order to facilitate reading and writing, a large multi-digit number is often rewritten as a number in units of "10,000" or "100 million". Sometimes, if necessary, you can omit the number after a certain number and write it as an approximation.