信义3数学符号的英语读法

2021年1月17日发(作者：教学案例范文)
数学符号的英语读法
als and Ordinals 基数和序数

(1)100以内的数词
基数 序数
Roman Arabic
Numerals Numerals
罗马数字 阿拉伯数字 读法 数码 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
L 50 fifty 50th the fiftieth
LX 60 sixty 60th the sixtieth
LXX 70 seventy 70th the seventieth
LXXX 80 eighty 80th the eightieth
XC 90 ninety 90th the ninetieth
IC 99 ninety-nine 99th the ninety-ninth
C 100 one hundred 100th the hundredth
CII 102 a hundred 102nd the (one) hundred
and two and second
246 two hundred and forty-six
751 seven hundred and fifty-one

(2)1000以上的数词
1,000 = one thousand 一千
10,000 = ten thousand 一万
100,000 = one hundred thousand 十万
1,000,000 = one million 一百万
10,000,000 = ten million 一千万
100,000,000=one hundred million 一亿

(3)十亿以上的大数，英美有不同的读法：
英国 美国
十亿 one thousand million = one billion
百亿 ten thousand million = ten billion
千亿 one hundred thousand million = one hundred billion
万亿 one billion = one trillion

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小时5分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 (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25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 = teh first 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
[附注]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