英语中数字的读法规则如下：
1到20之间，直接读单个的数字；读大于20的数字，先读十位数再读个位数：7-seven，32-thirty-two，89-eighty-nine；当表达大于100的数字时，以“百”为单位来读，顺序为十亿、百万、千、百。
Expressing numbers in English can be confusing to both students and those listening. Make sure you understand how to express numbers in spoken English by following these rules.
用英语表达数字，无论是对学生还是听者来说都是容易令人困惑的。通过遵循以下这些规则，可以确保你懂得如何用英语表达数字。
Below you will find numbers written out in order to helps students learn the correct grouping in English. Generally speaking, numbers larger than twenty should always be expressed by numbers in written English:
你会发现下面写出的数字是为了帮助学生学习正确的分组。一般来说，大于二十的数在书面英语中应该用数字表示：
I have fifteen clients in New York.
我在纽约有十五个客户。
She has 240 contacts on her mailing list.
她的邮件列表上有240个联系人。
Tens
十位数
Say individual numbers between one and twenty. After that, use the tens (twenty, thirty, etc.) followed by the numbers one through nine:
一到二十之间，我们读单个的数字。二十往后，使用十位数（二十，三十等），紧接数字一到九：
7 - seven
19 - nineteen