一、英語基數(shù)詞從 21——99依次為：twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine thirty thirty-one thirty-two thirty-three thirty-four thirty-five thirty-six thirty-seven thirty-eight thirty-nine forty forty-one forty-two forty-three forty-four forty-five forty-six forty-seven forty-eight forty-nine fifty fifty-one fifty-two fifty-three fifty-four fifty-five fifty-six fifty-seven fifty-eight fifty-nine sixty sixty-one sixty-two sixty-three sixty-four sixty-five sixty-six sixty-seven sixty-eight sixty-nine seventy seventy-one seventy-two seventy-three seventy-four seventy-five seventy-six seventy-seven seventy-eight seventy-nine eighty eighty-one eighty-two eighty-three eighty-four eighty-five eighty-six eighty-seven eighty-eight eighty-nine ninety ninety-one ninety-two ninety-three ninety-four ninety-five ninety-six ninety-seven ninety-eight ninety-nine
注：整數(shù)幾十中除twenty，thirty, forty，fifty，eighty為特殊形式外，sixty，seventy，ninety都是其個(gè)位數(shù)形式后添加后綴-ty構(gòu)成。表示幾十幾時(shí)，在幾十和個(gè)位基數(shù)詞形式之間添加連字符“-”

二、小數(shù)表示法
1. 小數(shù)用基數(shù)詞來表示，以小數(shù)點(diǎn)為界，小數(shù)點(diǎn)左首的數(shù)字為一個(gè)單位，表示整數(shù)，數(shù)字合起來讀；小數(shù)點(diǎn)右首的數(shù)字為一個(gè)單位，表示小數(shù)，數(shù)字分開來讀；小數(shù)點(diǎn)讀作 point，o讀作 zero或o〔ou〕，整數(shù)部分為零時(shí)，可以省略不讀。例如：
0.4 zero point four或point four 零點(diǎn)四
10.23 ten point two three 十點(diǎn)二三
25.67 twenty-five point six seven 二十五點(diǎn)六七
l.03 one point o three 一點(diǎn)零三
2. 當(dāng)數(shù)字值大于1時(shí)，小數(shù)后面的名詞用復(fù)數(shù)，數(shù)字值小于1時(shí)，小數(shù)后面的名詞用單數(shù)。
1.03 meters 一點(diǎn)零三米 0.49 ton 零點(diǎn)四九噸
l.5 tons 一點(diǎn)五噸