Division ndi ziro: bwanji?

chiletso Mokhwima pa magawano ndi ziro chikangoperekedwa ngakhale mu sukulu junior mkulu. Ana zambiri musaganizire zimayambitsa Komatu kudziwa chifukwa chake ndikoletsedwa, ndipo chidwi ndi zothandiza.

ntchito masamu

Masamu ntchito, amene anaphunzitsa pa sukulu, wosiyana malinga masamu. Iwo amazindikira zonse ziwiri zokha ntchito izi - Kuwonjezera ndi kuchulukitsa. Iwo amakhala mu maganizo odzikonda ndi zochita zina zonse ndi manambala njira ina zochokera awiriwa. Ndiko kuti, ndi zosatheka osati kugawanitsa ndi ziro, koma kugawikana zambiri.

Wochotsera ndi kugawikana

Kodi akusowa ena anachita? Kachiwiri, sukulu ziri zodziwika bwino kuti Mwachitsanzo, kuchotsera anayi zisanu ndi ziwiri - ndiye kutenga chokoleti asanu, anayi a iwo kudya ndi kuwerenga amene anapulumuka. Koma masamu si vuto la kudya maswiti ndi zambiri ndazindikira kotheratu mosiyana. Pakuti iwo pali Kuwonjezera kokha, ali ndi mbiri ya 7 - 4 = ambiri amene ali Uwerenge nambala 4 adzakhala wofanana 7., pakuti masamu, 7 - 4 - ndi shorthand aone kuti pali × + 4 = 7. Izi si wochotsera, koma vuto - kupeza angapo kuti muyenera kuika mu malo x.

N'chimodzimodzinso magawano ndi kuchulukitsa. Nagawira khumi ndi awiri, mladsheklassnikov kutchera kunja candies khumi m'miyulumiyulu awiri ofanana. Masamu chomwecho apa kuona aone kuti pali: 2 · × = 10.

Ndipo zimaonekeratu chifukwa chake kugawanikana oletsedwa ndi ziro: izo sangathe. Lembani 6: 0 ayenera n'kukhala aone kuti pali 0 · × = 6. M'mawu ena, mufuna kupeza angapo kuti akhoza kuchulukitsa ndi ziro ndi kupeza 6. Koma tidziwa kuti chulutsa ndi ziro nthawi zonse amapatsa ziro. Ichi chuma zofunikira za ziro.

Motero, pali chiwerengero yakuti, kuchulukitsa ndi ziro, adzapereka ena chiwerengero ena kuposa ziro. Choncho, aone kuti pali uyu alibe njira, palibe chiwerengero chotero, chomwe akanati chilamulira chikhalidwe ndi mbiri ya 6: 0, ndiko kuti, sizimatanthauza. Pa zopusa zake ndi kunena amene amaletsa magawano ndi ziro.

Kodi ziro kugawidwa ndi ziro?

Kodi n'zotheka kuti ziro kugawidwa ndi ziro? The aone kuti pali 0 · × = 0 sikovuta, ndipo angathe kumwedwa ngati × kwambiri ziro ndi kupeza 0 · 0 = 0. Ndiye 0: 0 = 0? Koma ngati, mwachitsanzo, tengani chifukwa × wagawo, ndinalandira 0 · 1 = 0. Atha kumwedwa kwa × ambiri chiwerengero anakhumba ndi kugawaniza ndi ziro, ndipo zotsatira sizinasinthe: 0: 0 = 9, 0: 0 = 51 ndi pa.

Choncho, aone kuti pali ichi, mungathe kumanga chiwerengero cha kwathunthu, ndipo inu simungakhoze kusankha iliyonse, ndi kovuta kudziwa mmene ambiri anasankha mbiri 0: 0. Ndiko kuti, nkhani imeneyi komanso sizimatanthauza, ndi kugawikana ndi ziro akadali zosatheka iye ogawanika ngakhale pa yekha.

Kuti ndi mbali yofunika ya ntchito magawano, ndiye chulutsa ndi chiwerengero kugwirizana ndi ziro.

funso n'lakuti: chifukwa si kugawanitsa ndi ziro, koma n'zotheka deducted? Tikhoza kunena kuti masamu limayamba ndi vutoli chidwi. Kuti tipeze yankho, muyenera kuphunzira yokhala masamu tanthauzo kukukhala n'zosangalatsa kumva ndi kukumana ntchito pa iwo. Mwachitsanzo, pali osiyanasiyana kokha, komanso zovuta manambala, magawano amene isiyana ndi gulu wamba. Si m'gulu la maphunziro a kusukulu, koma nkhani yunivesite mu masamu kuyambira izi.