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加、减、乘、除＋－×÷TheExpressions＋addplusand－subtractminus×multiply÷divideaddition•2+4=？•Howmuchistwoplusfour?•用and,plus,addedto等词表示。•2＋4＝6•可译为：•Twoandfourissix.•Twoplusfourisequaltosix.•Twoaddedtofourequalssix.•Twoandfourmakessix.•Twoplusfourwillbesix.•Ifyouaddtwotofour,yougetsix.3+4=7•Threeplusfourisseven.•Threeandfourmakesseven.•equal•So,wecansay:•Threeandfourisequaltoseven.•Threeaddedtofourequalsseven.•What’sthreeplusfour?It’sseven.subtraction•8-3＝?•Howmuchistenminussix?8-3=5•minus•8-3=5•可译为：••Eightminusthreeisfive.•Eightminusthreeisequaltofive.multiplication•Time(v.)ormultiply•3×4＝?•Howmuchisthreetimesfour?3×4＝12•Threetimesfouristwelve.•Multiplythreebyfour,wegettwelve.•Threemultipliedbyfourmakestwelve.division•15÷5＝?•Howmuchisfifteendividedbyfive?15÷5＝3•Fifteendividedbyfiveisthree.•Fifteendividedbyfiveequals/makesfour.Somefractions•¾threefourths;threequarters•½ahalf•¼a/onequarter•1½oneandahalf•3¼threeandonefourth;threeandonequarterSomeexamples:•一个半小时：oneandahalfhours•二又四分之三米：twoandthree-fourthsmeters•五分之四英寸：four-fifthsinchThankyou!