如何用英語表達數字？
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.
用英語表達數字，無論是對學生還是聽者來說都是容易令人困惑的。通過遵循以下這些規則，可以確保你懂得如何用英語表達數字。
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:
你會發現下面寫出的數字是爲了幫助學生學習正確的分組。一般來說，大於二十的數在書面英語中應該用數字表示：
I have fifteen clients in New York.
我在紐約有十五個客戶。
She has 240 contacts on her mailing list.
她的郵件列表上有240個聯繫人。
Tens
十位數
Say individual numbers between one and twenty. After that, use the tens (twenty, thirty, etc.) followed by the numbers one through nine:
一到二十之間，我們讀單個的數字。二十往後，使用十位數（二十，三十等），緊接數字一到九：
7 - seven
19 - nineteen
32 - thirty-two
89 - eighty-nine
When expressing large numbers (more than one hundred) read in groups of hundreds. The order is as follows: billion, million, thousand, hundred. Notice that hundred, thousand, etc. is NOT followed by an "s"
當表達大數字時（超過一百），以“百”爲單位來讀。順序如下：十億，百萬，千，百。請注意，百、千等詞後面不加“s”
Two hundred NOT two hundreds
Two hundred不是two hundreds
Hundreds
百位數
Say numbers in the hundreds by beginning with numerals one through nine followed by "hundred". Finish by saying the last two digits:
讀百位數以一到九開始，緊接着“hundred”，以末尾的兩位數結束：
350 – three hundred fifty
425 – four hundred twenty-five
873 - eight hundred seventy-three
112 - one hundred twelve
NOTE: British English takes "and" following "hundred." American English omits "and:".
注：英式英語會在“hunderd”後加上“and”。美式英語則省略“and”。
Thousands
千位數
The next group is the thousands. Say a number up to 999 followed by "thousand." Finish by reading the hundreds when applicable:
下一組是千位數。先讀出999以內的數字，後面緊接“thousand”，然後必要時，以百位數來結束。
15,560 – fifteen thousand five hundred sixty
786,450 – seven hundred six thousand four hundred fifty
342,713 - three hundred forty-two thousand seven hundred thirteen
569,045 - five hundred sixty-nine thousand forty-five
Millions
百萬位
For millions, say a number up to 999 followed by "million." Finish by saying first the thousands and then the hundreds when applicable:
對於百萬位的數，先讀出999以內的數字，後面緊接“million”，然後必要時，先以千位數，再以百位數來結束。
2,450,000 – two million four hundred fifty thousand
27,805,234 - twenty seven million eight hundred five thousands two hundred thirty-four
934,700,000 – nine hundred thirty-four million seven hundred thousand
589,432,420 - five hundred eighty nine million four hundred thirty-two thousand four hundred twenty
For even larger numbers, first use billions and then trillions in a similar manner to millions:
對於更大的數字，先用十億位，再用萬億位，然後以相同的方式表達百萬位。
23,870,550,000 - twenty-three billion eight hundred seventy million five hundred fifty thousand
12,600,450,345,000 - twelve trillion six hundred billion four hundred fifty million three hundred forty-five thousand
Large numbers are often rounded to the next biggest or next smallest number to make things easier. For example, 345,987,650 is rounded to 350,000,000.
過於大量的末尾數往往被舍入到下一位最大或最小的整數，這樣就使讀數變得更容易。例如，345987650被舍入到350000000。
Decimals
小數
Speak decimals as the number followed by "point." Next, say each number beyond the point individually:
讀小數就讀出數字，緊接着加上“point”。然後後面的數字分別單獨來讀就行。2.36 - two point three six
14.82 - fourteen point eight two
9.7841 -nine point seven eight four one
3.14159 - three point one four one five nine
Percentages
百分數
Speak percentages as the number followed by "percent"
讀百分數就讀出數字，緊接“percent”
37% - thirty-seven percent
12% - twelve percent
87% - eighty-seven percent
3% - three percent
Fractions
分數
Speak the top number as a cardinal number, followed by the ordinal number + "s"
分數線上面的數字讀基數詞，分數線下面的數字讀序數詞加“s”。
3/8 - three-eighths
5/16 - five-sixteenths
7/8 - seven-eighths
1/32 - one thirty-second
Exceptions to this rule are:
這個規則的例外情況是：
1/4, 3/4 - one-quarter, three quarters
1/3, 2/3 - one third, two-thirds
1/2 - one-half
Read numbers together with fractions by first starting the number followed by "and" and then the fraction:
讀帶分數的方法是先讀前面的數字，再加上“and”，然後讀分數。
4 7/8 - four and seven-eighths
23 1/2 - twenty-three and one-half
Important Numerical Expressions
重要的數字表達
Here are the descriptive names of a number of important numerical expressions:
下面是描述性名稱的重要數值表達：
Speed - 100 mph (miles per hour)
速度 - 100英里/小時（英里/小時）
Read speed as numbers: One hundred miles per hour
讀速度值: One hundred miles per hour
Weight - 42 lb. (pounds)
重量 - 42磅（磅）
Read weight as numbers: forty-two pounds
讀體重值：forty-two pounds
Telephone number - 0171 895 7056
電話 - 0171 895 7056
Read telephone numbers in individual numbers: zero one seven one eight nine five seven zero five six
讀電話要單獨讀出每個數字：zero one seven one eight nine five seven zero five six
Dates - 12/04/65
日期 - 12/04/65
read dates, month, day, year
讀出日期，月，日，年
Temperature - 72° F (Fahrenheit)
溫度 - 72華氏度（華氏溫度）
Read temperature as "degrees +number": seventy-two degrees fahrenheit
讀溫度的方式是“degrees +number”： seventy-two degrees fahrenheit
Height - 6'2''
高度 - 6'2''
Read height in feet and then inches: six feet two inches
讀高度，先讀英尺，再讀英寸： six feet two inches
Price - $60
價格 - $60
Read the currency first the number, then the currency: Sixty dollars
讀錢數，先讀數字，再讀貨幣單位：Sixty dollars
Express dollars by stating the dollar amount followed by cents:
表達美元，先讀美元，再讀美分：
$43.35 - forty-three dollars thirty-five cents
$120.50 - one hundred twenty dollars fifty cents
Native speakers often just say first the dollar number and then the cents number and drop "dollars" and "cents"
以英語爲母語的人，經常只先說美元，然後是美分的數字，通常省略“dollars”和“cents”
35.80 - thirty-five eighty
175.50 - one hundred seventy-five fifty
Score - 2-1
比分 - 2 - 1
Read scores as "number + to + number": Two to one
讀分數這樣讀：“數字 ＋ to ＋ 數字”：Two to one
Ordinal Numbers
序數詞
Ordinal numbers are used when speaking about the day of the month, or the position in a group. Most numbers end in 'th', except "first", "second", and "third" of every ten numbers:
序數詞是用來表達某月中的某一天，或在一個羣體中的位置。除了個位十個數字中的“第一”、“第二”和“第三”外，大多數序數詞都以“th”結尾：
2nd - second
第二
3rd - third
第三
5th - fifth
第五
17th - seventeenth
第十七
8th - eighth
第八
21 - twenty-first
第二十一
46 - forty-sixth
第四十六
