尺子英语怎么读（HowtoReadaRuler）

最佳答案HowtoReadaRulerIntroduction Arulerisacommontoolusedformeasuringlength,width,andheight.Itcanbefoundinclassrooms,offices,andhomes.However,assimpleasitmayseem,note...

HowtoReadaRuler

Introduction

Arulerisacommontoolusedformeasuringlength,width,andheight.Itcanbefoundinclassrooms,offices,andhomes.However,assimpleasitmayseem,noteveryoneknowshowtoreadarulerproperly.Inthisarticle,wewilldiscussthepartsofarulerandhowtoreaditaccurately.

PartsofaRuler

Beforelearninghowtoreadaruler,itisessentialtoknowitsparts.Astandardrulerhastwomainparts:thebodyandthemarkings.Thebodyistheflat,thin,andlongportionoftheruler,whilethemarkingsarethelinesandnumbersonit.Themarkingscanbeininches,centimeters,orboth.Theinchmarkingsareusuallythelongerlinesontheruler.Theyareoftenlabeledaswholenumbers,halfinches,quarterinches,oreighthinches.Ontheotherhand,thecentimetermarkingsareshorterandfrequentlylabeledaswholenumbers,halfcentimeters,ormillimeters.

HowtoReadaRuler

Nowthatweknowthepartsofaruler,letusproceedwithlearninghowtoreadit.Firstly,makesurethattherulerisplacedoralignedaccuratelywiththeobjectbeingmeasured.Otherwise,youwon'tgetanaccuratemeasurement.Forinches,readthewholenumberunitfirst,thenthenearestlargerlinesegment.Forexample,iftheobject'sendisbetweenthe2-inchlineand3-inchline,butclosertothe2-inchline,thenthemeasurementis2inches.Iftheendisexactlyonthe2-inchline,thenthemeasurementis2inchesaswell.Forfractionalmeasurements,countthenumberoflinesegmentsbetweenthewholenumberunits.Forexample,iftherearefourlinesegmentsbetweenthe2-inchlineand3-inchline,andtheendisclosesttothethirdlinesegment,thenthemeasurementis2and3/4inches.Whenreadingcentimeters,theprocessisthesameasreadinginches.Readthelargerunitfirst,thentheclosestlinesegmentforfractionalmeasurements.However,decimalpointsarecommonlyusedinsteadoffractionsinmetricmeasurements.Forexample,iftheendisbetweenthe2cmlineandthe3cmline,butclosertothe2cmline,thenthemeasurementis2cm.Iftheendisexactlyonthe2cmline,thenthemeasurementis2cmaswell.Forfractionalmeasurements,usedecimalpointsinsteadoffractions.Forinstance,iftheendisclosesttothe2.5cmline,thenthemeasurementis2.5cm.

Conclusion

Knowinghowtoreadarulerisanessentialskillthatanyonewhoregularlyusesoneshouldpossess.Withthestepsabove,youshouldbeabletousearulerwitheaseandaccuracy.Alwaysremembertoaligntherulercorrectly,readthewholenumberunitsfirst,andusefractionsordecimalpoints,dependingonthemeasurementsystem.