The number of thousands has four digits. The first one is 1, followed by three consecutive zeros to form 1000. There are 100 ten in a thousand, 1 000,1000. The analysis process is as follows:

1, 1000 ÷ 10 = 1002, 1000 ÷ 100 = 103, 1000 ÷ 647; . The reading method is as follows:

1. Read numbers from left to right according to their rows. For example, 3045002 is pronounced as 3045002. This reading method is used when reading pure decimals or records. It is called simple reading method and can be used to read decimal numbers and non-decimal numbers.

2. From right to left are: unit level (including unit, 10, 100, 1000), million level (including 10, 100, 100 million, 100 million) and billion level (including 1 billion, 1 billion, 1 billion).