基數(shù)詞,序數(shù)詞即可
二分之一：one half
三分之一：one third
三分之二：one thirds
one multiplied by one then divided by two is one half.這句還可再斟酌.能否one half is equal to one multiplied byone then divided by two ?嗯，這樣的說法更貼切一些。我說的is在這兒顯得有點別扭。這個好。One second is equal to one multiple one and minus two？這樣呢？用被動和不用被動都可以嗎“乘”用time（動詞）或multiply表示　　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“除”用divide的過去分詞形式表示　　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。