(六)倍数的表示法:
一倍用once,两倍用 twice,两倍以上用基数词+times。如:5倍five times。
(七)一些数学公式的读法:
3 8=11 Three plus eight is eleven.
9-7=2 Nine minus seven is two.
a>b a is more than b.
(八)约数的表示法
⑴ “多于”用more than 或over
This room can hold more than (=over) 500 people.这间屋子能容纳500多人。
⑵ “少于”用less than
There are less than thirty balls in the basket.篮子里不到三十个球。
⑶ “或……以上”用or more
The music hall can hold 7000 people or more.音乐厅能容纳7000人或7000人以上。
⑷ “或……以下”用or less
The house can hold 50 people or less. 这座房子可容纳50人或50人以下。
⑸ “大约”用about, around, nearly等
The box weights about 50 pounds.这个箱子重约50磅。
⑹ “左右”用or so
In the past ten years or so , they have changed a lot.在过去的十年左右的时间里,他们改变了许多。
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