How to pronounce numbers? Why add zero in the middle? Is there any regularity in reading?

The number reading method is graded first, and the ten thousand series is read according to the series reading method, followed by a word (ten thousand); Each level has several zeros, all of which are read-only (1); The end of each level is zero (no reading).

There are zeros at the end of a number. No matter how many zeros there are, there are zeros at the end of any level after classification. When reading is needed, no matter how many zeros there are, only one zero is read, and no matter how many zeros there are in the middle, only one zero is read.

Extended data:

Numbers within 1 and four digits can be read from the highest order. 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. For example: 384375900 1 pronounced as 3.8437590 1.

3. The use of capital figures began in Ming Dynasty. Zhu Yuanzhang issued a decree because of a major corruption case "Guo Huan case" at that time, which clearly required that the number of bookkeeping should be changed from "one, two, three, four, five, six, seven, eight, nine, ten, ten and one hundred thousand" to "one, two, three, four, five, seven and nine". Later, "Mo" and "Qian" were rewritten as "Bai and Qian", which have been used ever since.

References:

Baidu Encyclopedia _ Capital Numbers Baidu Encyclopedia _ Complex Reading Methods