一、Number 數字

10⁶：     one million

10⁹：     one billion (orone thousand million)

10¹²：    one trillion (orone million million)

10¹⁵：    onequadrillion(or one thousand million million)

10¹⁸：    one quintillion(or one million million million)

123,456,789：  one hundred and twenty threemillion, four hundred and fifty-six thousand, seven hundred and eighty-nine

12,345,678,900,000：twelve trillion, three hundred and forty five billion, six hundred andseventy-eight million, nine hundred thousand

-18：    minus eighteen

二、Fractions 分數

通常將分子讀為基數，將分母讀為序數。

1/2：      a (or one) half

1/3：      a (or one) third

1/4：      a quarter or onefourth

1/5：      a (or one) fifth

2/3：      two thirds, twoover three, or two by three

9/10：    nine tenths, nineover ten, or nine by ten

53/4：    five and threequarters

15/64：  fifteen over (orby) sixty-four

15%：    fifteen per cent

4‰：     four per mill (or mil)

三、Decimals 小數

0.4：         zero (or naught)point four

.01：         point (ordecimal) naught (or oh) one

12.34：     twelve pointthree four

567.809： five hundred andsixty-seven point eight naught (or oh) nine

30.45：     thirty point fourfive,   

0.3333333…..：  pointthree repeating (or recurring)

0.3%：      point (ordecimal) three percent   

四、Mathematic Forms 數學式

(4-1)  Addition 加法

1+2=3：    One and two arethree.

2+3=5：    Two plus threeequals five.

4+0=4：    Four and naughtis equal to four.

45+70+152=267：  45, 70 and 152added are (or make) 267       

                  the sum (or total) is 267.

(4-2)  Subtraction 減法

9-4=5：    Nine minus fourequals (or is equal to) five.

15-7=8：  Seven fromfifteen leaves eight.

23,654-8,175=15,479：   8,175(take or subtracted) from 23,654 leaves 15,479.

                       Thedifference (or The remainder) is 15,479.

(4-3)  Multiplication 乘法

1×0=0：    One multiplied bynaught equals naught.

1×1=1:       Once one is one.

2×1=2：    Twice one is two.

3×5=15：  Three times fiveis fifteen

6×0=0：    Multiply six bynothing, and the result is nothing.

(4-4)  Division 除法

9÷3=3：    Nine divided bythree makes (or is equal to) three.

20÷5=4：  Five into twentygoes four times.

4567÷23=198 餘 13：  23 into 4567 goes198 times, and 13 remainder.

                       Thequotient is 198, and 13 remainder.

五、Power 冪次方

bⁿ 當中， b 被稱為底數 (base)，n 被稱為指數 (power orexponent) 

bⁿ：           the n^th power of b 或 b to the n^th power.

a×10⁷：      a times the seventh power of ten.

b 的平方：       b square or bsquared

b 的立方：       b cube or bcubed

b 的4次方：   b to the fourth

b 的-1次方：   b to the minus one

六、Time 時間

(6-1)  Hours 鐘點

2h.5'8"：  twohours five minutes eight seconds 2小時5分8秒

6.18：  six eighteen 6時18分

8.30 a.m.：  eight thirty a.m. 上午8時30分

the 6.05 p.m. train：  the six(naught) five p.m. train 下午6時零5分列車

又二十四小時混合制的寫法和讀法如下：

0900：  0 nine hundred (上午)9時

0910：  0 nine ten (上午)9時10分

1300：  thirteen hundred 13時(下午1時)

1525：  fifteen twenty-five 15時25分(下午3時25分)

2000：  twenty hundred 20時(下午8時)

at 5 o'clock：  at fiveo'clock 五點鐘

(6-2)  Date 日期

Oct.1：  October first 10月1日

Oct.1st：  Octoberthe first 10月1日

1st Oct. 1949：  thefirst of October, nineteen forty-nine 1949年10月1日

3/5：  [英] May (the) third 5月3日；[美]March fifth 3月5日  

684 B.C.：  Sixeighty-four B.C. 公元前684年

106 A.D：  one oh six A.D.  公元106年

1960：  nineteen sixty;  nineteen hundred and sixty

19-：  nineteen something

1950's：  nineteenfifties 二十世紀五十年代

60's：  sixties 本世紀60年代

1770年代初期：  in theearly 1770's   

20世紀末：  in the late20^th century 

11世紀中葉：  in the mid11^th century 

七、Phone and Room Numbers 電話及房間號碼

2303-9047：   two three zero(or oh) three, nine zero (or oh) four seven

3366-3662：   three three sixsix, three six six two

        或    doublethree double six, three double six two   

room 137：     room one three seven

車牌號碼，身分證號碼，以及各種編號的讀法皆類似