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加减乘除英语表示法
1.
< br>“
加
”
用
plus
,
and
或
add
表示;
“
等于
”
用
is
,
make
,
equal
等
词表示。
2+3=?
可表示为:
How
much(what)
is
two
plus
three?
2+3=5
Two
plus
three
is
five
.
Two
and
three
is
equal
to
five
.
Two
and
three
makes
five
.
Two
added
to
three
equals
five
.
If
we
add
two
to/and
three,
we
get
five
.
二加三等于五
2.
“
减
”
用
minus
或
take
from
表示
10
-<
/p>
6
=
?
How
much
is
ten
minus
six?
10-6=4
Ten
minus
six
is
four
.
Take
six
from
ten
and
the
remainder
is
four.
Six
(taken)
from
ten
is
four
.
十减去六等于四
3.
“
乘
”
用
tim
e
(动词)或
multiply
表示<
/p>
3X4
=
?
How
much
is
three
times
four?
3X4=12
Three
times
four
is/are
twelve
.
Multiply
three
by
four
,
we
get
twelve
.
Three
multiplied
by
four
makes
twelve
.
三乘以四等于十二
4.
“
除
”
用
divide
的过去分词形式表示
16÷
4=?
How
much
is
sixteen
divided
by
four?
16÷
4
=
4
Sixteen
divided
by
four
is
four
.
Sixteen
divided
by
four
equals/gives/makes
four
.
十六除以四等于四。
五、分数表示法
1.
分数是由基数词和序数词一起
来表示的。基数词作分子,序
数词作分母,除了分子是
“1”<
/p>
以外,其它情况下序数词都要用复数形
式。
3/4
three
fourths
或
three
quarters
1/3
one
third
或
a
third
24/25
twenty-four
twenty-fifths
3
1/4
three
and
one
fourth
或
three
and
one
quarter
1/2
a
half
1/4
one
quarter
或
a
quarter
1
1/2
one
and
a
half
1
1/4
one
and
a
quarter
2.
当分数后面接名词时,
如果分数表示的值大于
1
,
< br>名词用复数;
小于
1
,名词用单
数。
1
1/2
hours
一个半小时(读作
one
and
a
half
hours
)
2
3/4
meters
二又四分之三米(读作
two
and
three-fourths
mete
rs
)
4/5
meter
五分之四米
5/6
inch
六分之五英寸
3.
表示
“n
次方
”
的说法:指数用序数词,底
数用基数词。
< br>10
的
7
次方
< br>
the
seventh
power
of
ten
(
ten
to
the
seventh
powe
r
)
6
的
p>
10
次方
the
tenth
power
of
six
(
six
to
the
tenth
power
)
小数英语表示法
1.
小数用基数词来表示,以小数点为界,小数点左首的数字为一个
单位,表示整
数,数字合起来读;小数点右首的数字为一个单位,表
示小数,
数字分开来读;
小数点读作
poin
t
,
o
读作
zero
或
o
[
ou
]
,
整
数部分为零时,可以省略不读。
0.4
zero
point
four
或
point
four
零点四
10.23
ten
point
two
three
十点二三
25.67
twenty-five
point
six
seven
二十五点六七
l.03
one
point
o
three
一点零三
2.
当数字值大于
1
时,小数后面的名词用复数,数字值小于
1
时,小数后
面的名词用单数。
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