常用英文数学式

常用英文数学式

/

符号的读法

< br>

als and Ordinals

基数和序数

罗马数字

阿拉伯数字

读法

I 1 one 1st the first

II 2 two 2nd the second

III 3 three 3rd the third

IV 4 four 4th the fourth

V 5 five 5th the fifth

VI 6 six 6th the sixth

VII 7 seven 7th the seventh

VIII 8 eight 8th the eighth

IX 9 nine 9th the ninth

X 10 ten 10th the tenth

XI 11 eleven 11th the eleventh

XII 12 twelve 12th the twelfth

XIII 13 thirteen 13th the thirteenth

XIV 14 fourteen 14th the fourteenth

XV 15 fifteen 15th the fifteenth

XVI 16 sixteen 16th the sixteenth

XVII 17 seventeen 17th the seventeenth

XVIII 18 eighteen 18th the eighteenth

XIX 19 nineteen 19th the nineteenth

XX 20 twenty 20th the twentieth

XXI 21 twenty-one 21st the twenty-first

XXV 25 twenty-five 25th the twenty- fifth

XXX 30 thirty 30th the thirtieth

XL 40 forty 40th the fortieth

ons

分数

通常将分子读为基数，将分母读为序数。

1/2 = a (or one) half

1/3 = a (or one) third

1/4 = a quarter or one fouth

1/5 = a (or one) fifth

2/3 = two thirds

9/10 = nine tenths

53/4 = five and three quarters

15/64= fifteen over (or by) sixty-four

15% = fifteen per cent

4‰ = four per mill

ls

小数

0.4 = zero (or nought) point four

.01 = point (or decimal) nought one

12.34 = twelve point three four

567.809

=

five

hundred

and

sixty-seven

point eight nought nine

30.45 = thirty point four five, five recurring

0.3% = decimal three percent

atic Forms

数学式

(1) Addition

加法

1+2=3 One and two are three.

2+3=5 Two plus three equals five.

4+0=4 Four and nought is equal to four

.

45+70+152=267 45,70 and 152 added are

(or make) 267

the sum (or total) is 267.

演算时的读法：

Three and seven are ten; I

write(or

I

write

down,or

I

put

down)a

nought

and

carry

one.

Four

and

one

that

I

carry

are five, and eight make thirteen,and three

sixteen;

I

write

down

six

and

carry

one.

One and one (that I carry) are two; I put

down

two.- The sum (or total, or the result of the

addition) is two hundred and sixty. 37,80

and 143 added together

, and(or make) 260.

(2)Subtraction

减法

9-4=5 Nine minus four equals (or is equal

to) five.

15-7=8 Seven from fifteen leaves eight.

23,654-8,175=15,479

8,175

(take

or

subtracted)

from

23,654

leaves

15,479.

The difference

(or The remainder) is 15,479.

Nine from five won`t go.

演算时的读法：

Nought from nought (leaves)

nought.

One

from

one

leaves

nought

(or

nothing).

Two from three (leaves) one. I can`t take

(or subtract) five from four; I must borrow

ten;

five

from

fourteen

leaves

nine.-

The

difference

(or

The

remainder)

is

nine

thousand one

hundred. 5210 (take or substracted) from

14,310 leaves 9,100.

(3)Multiplication

乘法

1×

0=0

One

multiplied

by

nought

equals

nought.

1×

1=1 Once one is one.

2×

1=2 Twice one is two.

3×

5=15 Three times five is fifteen

6×

0=0

Multiply

six

by

nothing,

and

the

result is nothing.

演算时的读法

:

Five

times

nine

(or

Nine

multiplied

by

five)

are

forty- five;

I

put

down five

and

carry

four

.

Five

times

seven

are

thirty-five

and

four

(that

I

carry)

are

thirty-nine; I write

down nine and carry three. Five times six

make

thirty

and

three

(that

I

carry)

thirty- three; I put

down thirty- three.

Eight times nine (or Eight nine) are seven

two;

I

write

two

and

carry

seven.

Eight

sevens make

fifty-six

and

seven

are

sixty- three.

I

put

down three and carry six. Eight sixes make

forty-eight

and six fifty-four; I write down fifty- four

.

I now add the partial results (or products)

Five. Two and nine are eleven. Three and

three are

six

and

one

are

seven.

Four

and

three

make seven. Five.

(4)Division

除法

9÷

3=3

Nine

divided

by

three

maks

(or

is

equal to) three.

20÷

5=4 Five into twenty goes four times.

4567

÷

23=198

余

13 23 into 4567 goes 198

times, and 13 remainder

.

The quctient is 198, and 13 remainder

.

演算时的读法

:

Fifteen into

thirteen won`t

go

;

fifteen

into

one

hundred

and

thirty-eight goes nine

times; nine times fifteen are one hundred

and

threty- five;

one

hundred

and

thirty-five from one hundred

and thirty-eight leaves three; I bring down

seven; fifteen into thirty-seven goes twice;

twice fifteen

are

thirty;

thirty

from

thirty-seven

leaves

seven.

The

(exact)

quotient

is

ninety-two,

and seven remainder; 15 into 1387 goes 92

times, and 7 remainder

.

时间

(1)Hours

钟点

2h.5'8

=

two

hours

five

minutes

eight

seconds 2

小时

5

8

秒

6.18 = six eighteen 6

时

18

分

8.30 a.m.= eight thirty a.m.['ei 'em]

上午

8

时

30

分

the 6.05 = the six (nought) five

p.m.['pi:'em] train

下午

6

时零

5

分列车

又二十四小时混合制的写法和读法如下：

0900 = 0 nine hunderd (

上午

)9

时

0910 = 0 nine ten (

< br>上午

)9

时

10

分

1300 = thirteen hundred 13

时

(

下午

1

时

)

1525 = fifteen twenty-five 15

时

25

分

(

下午

3

时

2 5

分

)

2000 = twenty hundred 20

时

(

下午

8

时

)

at 5 o'c =at five o'clock

五点钟

(2)Date

日期

Oct.1 =October first 10

月

1

日

Oct.1st = October the first 10

月

1

日

Ist

Oct.

1949

=

the

first

of

October

,

nineteen forty-nine 1949

年

10

月

1

日

3/5

=

[

英

]May

(the)

third

5

月

3

日；

[

]March fifth 3

月

5

日

[

附注

]< /p>

联系日期前置词用

on.

(3)Year

年份

684 B.C. =Six eighty-four B.C. ['bi:'si:]

公

元前

684

年

1960

=

nineteen

sixty;

nineteen

hundred

and sixty

19- nineteen something

1950's nineteen fifties

二十世纪五十年代

[

附注

]

联系年份的前置词用

in.

s

号码

(1)Telephones Numbers

电话号码

1023 = one O two three; ten twenty-three

1227 = one double two (or two two) seven

0386 = O three eight six

0096 = double O(or O O )nine six

7000

=

seven

O

double

O

=

seven

thousand

No.26= Number 26

第

26

号

Room 201 = Room two O one

第

201

房间

10 Changan Street = Ten Changan Street

长安街

10

号

(2)Writings

书籍作品

Vol.I = Volume one (or the first volume)

卷

一

=

Chapter

two

(or

the

second

chapter)

第

2

章

Page 3 = page Three (or the third page)

第

3

页

See pp.5-10 = See Pages five to ten

见第

5-10

页

Act V = Act five (or the fifth act)

第

5

幕

Hamlet

III

1:56

=

Hamlet

Act

Three,

Secene fifty-six

《哈姆雷特》第

3

幕第一场第

56

行

Matt.7:12

=

Matthew,

Chapter

Seven,

Verse Twelve

< br>《马可福音》第七章第

12

节

Beethoven

Op.49

=

Beethoven

Opus

forty-nine

贝多芬作品第

49

号

4to = quarto

四本开

8vo = octavo

八本开

(3)Other

其他

World War I = World War One

第一次世界