20%
20 per cent 20 percent
第七路公共汽车
Bus Number Seven
第201房间
Room 201
人民路153号
153 Renmin Road
4+8 =12
Four plus eight is twelve
11-7=4
Eleven minus seven is four.
6×5=30
Six times five is thirty.
20÷5=4
twenty divided by five is four.
A>B
A is more than B.
A<B
A is less than B.
A≈B
A is approximately (近似地, 大约)equals to B.
A≠B
A is not equal to B.
2.
约数表示法列表
含义
英语表达
例句
大于某数
more than
He has lived here for more than twenty years.
over
she is over fifty.
or more
There're thirty people or more in the meeting-room.
小于某数
less than
I have less than (not more than )fifty dollars.
under
Children under seven are not allowed to enter.
below
He would not sell it for below a hundred fifty dollars.
or less
The coat might cost him sixty dollars or less.
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