Mhlawumbi, uye wazibuza ukuba yintoni intsingiselo ye »inkulu kune«, Kunye nendlela yokwahlula kwezinye iisimboli zemathematics. Ewe, ukungazi ukuba singakuqonda njani, kuyinto eqhelekileyo de sibe siqhelene nabo. Ke ngoko, kweli nqaku linomdla nelifundisayo, siza kuchaza ngokweenkcukacha yonke into malunga nalo mmeli wokungalingani. Kuya kuba mnandi!.

omkhulu kune-1

Mkhulu kunokuba

Kwimathematika, iisimboli zisetyenziselwa ukwahlula amanani anezinto ezingaphezulu okanye ezingaphantsi kwezinye. Kule meko, imifuziselo emibini ibizwa ngokuba: inkulu kunophawu (>), nangaphantsi kwesimboli (<). Inye inembonakalo emile ngohlobo lwentolo okanye i-V ejikeleziweyo, egxininisa ukuvulwa okukhulu kwelona nani likhulu, ihlala ikho kwicala lasekhohlo.

Imizekelo kunye nobunzima

Xa sidibana namanye amanani, sinokuchonga ngokulula ukuba yeyiphi eyona inkulu kwaye yeyiphi encinci. Umzekelo: Sinala manani kwaye kufuneka sifumane elona likhulu kunye nelincinci: 1,3 kunye 5.

Kule meko, siyazi ukuba inani u-5 lelona likhulu kuzo zonke, lilandelwa ngu-3, ​​laze elona zincinci lalingu-1. Kodwa, ukuze sishwankathele yonke le nkqubo, siqhubeka sisebenzisa uphawu oluhambelanayo:>), ngolu hlobo lulandelayo: 5> 3> 1.

Kuqhelekile ukuba ezikolweni kukho ukubhideka ngexesha lokubhalwa, kodwa akukho nto iyenziwayo ayisombululi. Ukuba kukho ubunzima ngezi mpawu, izifundo zecalligraphy okanye ukuziqhelanisa phakathi kwamanani ahlukeneyo zinokwenziwa.

Kodwa, abafundi abaninzi bakufumanisa kunzima xa kufikwa kumanani amakhulu. Oku kuyenzeka, kuba iiyunithi azihlukanisi ngokuchanekileyo, kwaye oku kukhokelela ekubeni ungazi ngokuchanekileyo ubungakanani obuphathwayo.

Umzekelo: Sinamanani alandelayo: 106.781 kunye ne-105.450.

Kule meko, i-106.781 (ifundeka: ikhulu elinamathandathu amawaka, anamakhulu asixhenxe anamashumi asibhozo ananye) kunye ne-105.450 (ifundeka: ikhulu elinesihlanu lamawaka, anamakhulu amane anamashumi amahlanu). Ngale ndlela, ngokwazi ukwahlulahlula iiyunithi kunye nokuba nganye ifundwa njani, siza kwazi ukuba leliphi elona nani likhulu.

106.781 mkhulu kune-105.450. Ke ngoko, usebenzisa i inkulu kunophawu, kufuneka sibhale ngale ndlela ilandelayo: 106.781> 105.450.

Kubalulekile ukuba iiyunithi zifundwe ngokuchanekileyo, ukuze kwahlulwe okukhulu kunaphantsi.

Ndibeke kweliphi icala eyona inkulu kunophawu?

Olu phawu luya kuhlala luqondisa ukuvulwa okukhulu ukuya kubungakanani obukhulu, kuhlala kukhomba inani elinobungakanani obukhulu kwicala lasekhohlo.

Ukuthintela ukubhideka ngexesha lokubhalwa, kufanele ukuba kukhunjulwe ukuba iindawo zokuvula ziya kwicala lasekunene (ngendlela efanayo iya kubonisa enkulu kune), kodwa kule meko, umfuziselo wokuzilolonga uya kumela ngaphantsi.

Masisebenzise ezi zinto zilandelayo njengomzekelo, kwaye sichonge ifayile ye- uphawu lobukhulu kwamanye amanani, kuwo onke amanani: 30, 15, 35, 100, 120.

Iziphumo: 120> 100> 35> 30> 15. Siyabona ukuba ifayile ye inkulu kunophawu, inokuvula okukhulu isiya kubungakanani obukhulu obungaphezulu kobunye ubungakanani, ephawula umahluko phakathi kwazo. Oku kubizwa ngokuba luphawu lokungalingani (kuba zombini ezi zinto azilingani. Oko kukuthi, enye inkulu kunomnye).

Ukuba senza uthelekiso kunye uphawu lobuncinci, sinokujonga ukuvuleka kwicala lasekunene, kodwa kule meko, siza kuqaphela ukuba sibhekisa kubungakanani obufunyenwe kwicala lasekhohlo, siqaqambisa ukuba lingaphantsi kobungakanani obulandelayo.

Siza kuthatha amanani esiwasebenzisileyo njengomzekelo ongentla, kodwa sizakumela okungaphantsi komqondiso, ngoku:

15 <30 <35 <100 <120. Siyakubona ukuvulwa kwicala lasekunene, kodwa sicacisa ukusuka kwicala lasekhohlo inani elincinci kunale ilandelayo. Ke ngoko sinokuthi: i-15 ingaphantsi kwe-30, i-30 ingaphantsi kwe-35, i-35 ingaphantsi kwe-100, kwaye i-100 ingaphantsi kwe-120.

Ukwenza kube lula kuwe ukuba ukhumbule iisimboli, unokuqaphela ukuba icala elibonisa isixa esingaphantsi kunelincinci. Ngale ndlela uya kuba nakho ukwahlula ngokukhawuleza imiqondiso xa uzifumanisa uneemali ezinkulu okanye ezincinci. Ilula, akunjalo?

Qaphela: kubalulekile ukufunda ukufunda uphawu lokungalingani kunye nezixa, ukuze uqonde ngcono amanani ahlukanisa kwaye kutheni.

ngaphezu kwe

 

Umlando omncinci

Le miqondiso yafunyanwa okokuqala ngo-1631, kwincwadi ekusombululeni ii-algebraic equations ngu-Thomas Harriot: (isazi sezibalo nesiNgesi). Ngokuqinisekileyo wayenguyise weesimboli zemathematics.

Akashiyanga lifa kuphela kwindawo yokukhanya kunye nokukhanya kokukhanya kwimimandla eyahlukeneyo, kodwa ukwazile ukwenza iindlela ezahlukeneyo zokufuzisela iintlobo ezahlukeneyo zemiboniso yemathematics. Okungathandabuzekiyo kusinceda kakhulu namhlanje.

Kungenxa yokuba enkosi kwezi mpawu (zinkulu kuno - ngaphantsi kunaphakathi, phakathi kwabanye), sinokwenza umahluko okhawulezileyo xa sithetha ngamanani ngamanani.

Ukuzivocavoca kunye neendlela zokuziqhelanisa

Umthambo A: 1.000 nama-500. Kule meko, kufuneka uzibuze, Leliphi elona nani likhulu apha? Ukuchaneka! I-1.000 likhulu. Ngoku kufuneka ubhale ngophawu oluchanekileyo.

1.000> 500: Iwaka lingaphezulu kwamakhulu amahlanu. (I-1.000 500 likhulu kune-XNUMX).

Ukuzivocavoca B: 345, 250 kunye no-620. Kufuneka uyazi indlela yokuhlula amanani uze uwafunde ngokuchanekileyo ukuze ukwazi ukwahlula amanani aphezulu kwamanye.

I-620 yeyona inkulu. Ilandelwa ngama-345 kwaye ekugqibeleni, incinci ngama-250. Emva koko siqhubeka sibabhala ngophawu olukhulu kune:

620> 345> 250: Amakhulu amathandathu anamashumi mabini makhulu kunamakhulu amathathu anamashumi amane anesihlanu, kwaye amakhulu amathathu anamanci mane anesihlanu angaphezulu kumakhulu amabini anamashumi mahlanu. (620 mkhulu kuno-345, kwaye ama-345 mkhulu kuno-250).

Ukuzivocavoca C) 1600> 1559: Iwaka elinamakhulu amathandathu lixabiso elingaphezulu kwewaka elinamakhulu amahlanu anamashumi amahlanu anesithoba. (1600 mkhulu kuno-1559).

Uqheliso D) 20 21: amashumi amabini angaphantsi kwamashumi amabini ananye. (20 ingaphantsi kwama-21).

Qaphela: Khumbula ukuba kufuneka ufunde ukubala ubuninzi, kubalulekile ukuba wazi ukwahlula amanani ngokuchanekileyo, kuya kufuneka ukhumbule uphawu olukhulu lomncinci, kwaye okokugqibela, kubalulekile ukuba ubeke izizathu zokuba zombini ezi zinto azilingani, kule nto Kule meko, kuya kufuneka ubhale ubungakanani kwaye uchaze uphawu oluhambelanayo.

Khumbula ukuba izibalo azikho nzima okanye zinzima, zifuna ukuziqhelanisa rhoqo. Ukuba ufuna ukuqhubeka nokufunda, kuya kufuneka undwendwele eli khonkco: Amanani endalo.