加减乘除英语讲解

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1、加、减、乘、除＋－×÷ByChrisTheExpressions＋addplusand－subtractminus×multiply÷divideByChrisaddition3+4=？Howmuchisthreeplusfour?ByChris3+4=7Threeplusfourisseven.Threeandfourmakeseven.equalv./adj.So,wecansay:Threeandfourisequaltoseven.Threeaddedtofourequalsseven.What’sthreeplusfour?It’sseven.ByChrissubtracti

2、on10－6＝?Howmuchistenminussix?ByChris10－6＝4Tenminussixisfour.Wealsocanuse“take…from…”:Takesixfromten,andtheremainderisfour.(remaindern.余下的部分)ByChrismultiplicationTime(v.)ormultiply3×4＝?Howmuchisthreetimesfour?ByChris3×4＝12Threetimesfouristwelve.Multiplythreebyfour,wegettwelve.Threemultipliedbyfou

3、rmakestwelve.ByChrisdivision15÷5＝?Howmuchisfifteendividedbyfive?ByChris15÷5＝3Fifteendividedbyfiveisthree.Fifteendividedbyfiveequals/makesfour.ByChrisSomefractions¾threefourths;threequarters½ahalf¼a/onequarter1½oneandahalf3¼threeandonefourth;threeandonequarterByChrisSomeexamples:一个半小时：oneandahalf

4、hours二又四分之三米：twoandthree-fourthsmeters五分之四英寸：four-fifthsinchByChrisByChrisThankyou!ByChris