Zero, one, two, three, four, five, six, seven, eight, nine Quantity unit: ten, one hundred, one thousand, ten thousand, one hundred million Amount unit: yuan (round), corner, minute, zero, and whole (the original corner was not written as "whole").

Case study:

One hundred and fifty-eight thousand eight hundred and ten yuan, one hundred and ten yuan, eight cents, to remind you, the finance has rules on capitalization of special numbers, mainly ten thousand yuan with zeros in front, such as: 208,000 yuan, which cannot be written as: 208,000 yuan, but must be written as: 200,800 yuan. So you have to look at the correct answer.

Introduction to mathematics:

Ten digits of the Indo-Arabic numeral system, arranged in numerical order. Numbers are written symbols used to represent numbers. Different numeration systems can use the same number. For example, the numbers "0" and "1" are used in both decimal and binary systems. The same number has different representations in different counting systems. For example, the number 37 (Arabic numeral decimal) can be written in many ways: chinese numerals writes thirty-seven Roman numerals, and XXXVII Arabic numerals are written in binary 100 10 1. Numbers are closely related to our lives. It not only has counting function, but also has rich philosophical connotation.

1, some words.

Biography of Southern History of Ren Fang: "Wang Jian came from a composition, which made the point correct and the characters determined."

Song Weng Longyuan's poem "Ruilongyin" says: "The geese are flying in a horizontal array, and the servants are counted, and the dark clouds are hard to recognize."

2. Indicates the number of words. There are two kinds of numbers in Chinese characters, lowercase "one two three four five six seven eight nine Ten" and uppercase "1234567890".

3. Symbols representing numbers. For example, Suzhou code and Arabic numerals.

4. quantity; Number.

African Night, Slave and Slave Coast: "Black Africa lost nearly 200 million people, which is really a creepy number."