常用英文數學式/符號的讀法 @ 南台灣小白鯨

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常用英文數學式/符號的讀法

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 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
Decimals 小數

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

Mathematic Forms 數學式

(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.

(2)Subtraction 減法
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

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.

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餘13 23 into 4567 goes 198 times, and 13 remainder.
The quctient is 198, and 13 remainder.

Time 時間
(1)Hours 鍾點
2h.5′8″ = two hours 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.['ei 'em] 上午8時30分
the 6.05 p.m.train = the six (nought) five p.m.['pi:'em] 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 hunderd (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’c =at five o’clock 五點鍾

(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 (3)Year 年份
684 B.C. =Six eighty-four B.C. ['bi:'si:] 西元前684年
1960 = nineteen sixty; nineteen hundred and sixty
19- nineteen something 1950’s nineteen fifties 二十世紀五十年代

符號的英文讀法
period 句號
≈ is approximately equal to 約等於號
, comma 逗號
＜ is less than 小於號
： colon 冒號
＞ is more than 大於號
； semicolon 分號 B
≮ is not less than 不小於號
！ exclamation 驚嘆號
≯ is not more than 不大於號
？ question mark 問號
≤ is less than or equal to 小於或等於號
≥ is more than or equal to 大於或等於號
‘ apostrophe 省略號, 所有格符號
％ percent 百分之…
- dash 破折號
‰ per mill 千分之…
‘ ‘ single quotation marks 單引號
∞ infinity 無限大號
double quotation marks 雙引號
∝ varies as 與…成比例
( ) parentheses 圓括號
√ (square) root 平方根
[ ] square brackets 方括號
∵ since; because 因為
《》 French quotes 法文引號;書名號
∴ hence 所以
… ellipsis 省略號
∷ equals, as (proportion) 等於，成比例
¨ tandem colon 雙點號 ‑
∠ angle 角
ditto 雙點號
⌒ semicircle 半圓
∥ parallel 雙線號
⊙ circle 圓
／ virgule 斜線號
○ circumference 圓周
＆ ampersand = and
π pi 圓週率
～ swung dash 代字型大小
△ triangle 三角形
§ section; division 分節號
⊥ perpendicular to 垂直於
→ arrow 箭號；參見號
∪ union of 並，合集
＋ plus 加號；正號
∩ intersection of 交，通集
－ minus 減號；負號
∫ the integral of …的積分
± plus or minus 正負號
( ∑ sigma) summation of 總和
× is multiplied by 乘號
° degree 度
÷ is divided by 除號
′ minute 分
＝ is equal to 等於號
″ second 秒
≠ is not equal to 不等於號
＃ number …號
≡ is equivalent to 全等於號
℃ Celsius system 攝氏度
≌ is equal to or approximately equal to 等於或約等於號
＠ at 單價
mm…millimeter
cm…centimeter
m…meter
l…liter
ml…milliliter
g…gram
mg…milligram
ng…nanogram
μg…microgram
cc…cubic centimeter