Fractions 分數

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

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+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

(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.

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

Time 時間
(1) Hours

2h.5′8″ = two hours five minutes eight seconds 2

6.18 = six eighteen 6
18
8.30 a.m.= eight thirty a.m.['ei 'em]

the 6.05 p.m.train = the six (nought) five p.m.['pi:'em] train

0900 = 0 nine hunderd (

0910 = 0 nine ten (

1300 = thirteen hundred 13
(下午1)
1525 = fifteen twenty-five 15
25(下午325)
2000 = twenty hundred 20
(下午8)
at 5 o’c =at five o’clock

(2) Date 日期
Oct.1 =October first 10
1
Oct.1st = October the first 10
1
Ist Oct. 1949 = teh first of October, nineteen forty-nine 1949
101

3/5 = [
]May (the) third 53[]March fifth 35 (3)Year 年份
684 B.C. =Six eighty-four B.C. ['bi:'si:]

1960 = nineteen sixty; nineteen hundred and sixty
19- nineteen something 1950’s nineteen fifties

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.         period

≈        is approximately equal to

,         comma

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

≥        is more than or equal to

‘         apostrophe

percent 百分之
-         dash

‰      per mill

‘       single quotation marks

infinity 無限大號
"        double quotation marks

varies as 成比例
( )      parentheses

(square) root 平方根
[ ]      square brackets

since; because 因為
French quotes 法文引號;書名號
hence 所以
…       ellipsis

equals, as (proportion) 等於，成比例
¨       tandem colon

angle
..       ditto

semicircle 半圓
parallel 雙線號
circle
virgule 斜線號
circumference 圓周
ampersand = and
π      pi

swung dash 代字型大小
triangle 三角形
§      section; division

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

( ∑ sigma) summation of

×      is multiplied by

°      degree

÷      is divided by

minute
is equal to 等於號
second
is not equal to 不等於號
number …
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

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