Chokuwanziridza ane mbiru. Chokuwanziridza uye weboka wechikamu

Mugore vana kuchikoro chepuraimari rechitatu vari kutanga kudzidza Vnetablichnoe nyaya chokuwanziridza uye kupesana. Numbers mukati chiuru - mashoko ine ugone wenyaya. Recommended chirongwa panoparadzana nokuwanza mashandiro uye katatu-digit nhamba dzokugadzira inonzwisisika muenzaniso. Munguva basa iri musoro mudzidzisi anotanga kuumba kuvana unyanzvi inokosha iyi sezvo chokuwanziridza uye refu kupesana. In chechina unyanzvi giredhi wakuita mberi, asi akashandisa kusanganiswa zvinhu mukati miriyoni. Division uye chokuwanziridza rinoitwa munyika chokuruboshwe guru nhamba.

Chii hwaro chokuwanziridza

Root nechinzvimbo pamusoro izvo chokuwanziridza algorithm multivalued nhamba iri multivalued vakafanana kana uchishanda-mumwe. Kodzero vakanakidzwa nevana, pane zvakawanda. Vave "akadura" vadzidzi mugiredhi rechitatu.

Mutemo wekutanga bitwise. Yechipiri kunoratidzwa kushandisa tafura chokuwanziridza neimwe buditsa.

Tapota ona kuti zvinotaurwa izvi zviri kuoma kana kuita kushanda pamwe multi-nhamba.

Yakanyorwa kutevera muenzaniso achakubatsira kunzwisisa zviri pangozi. Kufunga zvinodiwa 80 X 5 uye 80 X 50.

Muchiitiko chokutanga, mudzidzi anofunga saizvozvo: 8 dhazeni rinofanira kudzokororwa 5 nguva, achawana zvakafanana dzakawanda, uye kuchava 40 sezvo 8 X 5 = 40, 40 dhazeni - iri 400, saka 80 X 5 = 400. The algorithm zviri nyore uye zvakajeka zvikonzero mwana. Kana dambudziko, anogona kuwana nyore mugumisiro kushandisa nezvaizoitwa Uyezve. How kutsiva hukapamhidzira-wanda kushanda zvakare zvinogona kushandiswa kuongorora Masvomhu dzavo.

Kuti uwane kukosha wechipiri okuti Zvinokoshawo kushandisa tabulated nyaya uye 8 X 5. Asi chii muchikwata ndezvaAroni vakagamuchira 40 inokwana zviyero? Mubvunzo vana vakawanda richakazaruka. Rubvumo kutsiva chokuwanziridza mugumisiro kuwedzera hazvisi safunga, sezvo mari ichava 50 mashoko, saka kurishandisa kuwana mugumisiro hazvibviri. Zvinova pachena kuti ruzivo kugadzirisa muenzaniso hakuna kukwana. Kunenge pane mitemo vachiwedzera multi-digit nhamba. Uye vanofanira kuzvibatanidza.

Vagari kuedza mudzidzisi nevana, zviri pachena kuti ari chokuwanziridza ari multivalued nhamba panguva multivalued zvakakodzera unyanzvi kushandisa mutemo associative, umo mumwe zvinhu yakatsiva chigadzirwa (80 X 50 = 80 X 5 x 10 = 400 x 10 = 4000)

Uyewo, zvinoita nzira apo uchishandisa distributive mutemo chokuwanziridza pamusoro Uyezve kana kubvisa. Muchiitiko chino, mumwe zvinhu zvinofanira yatsiviwa Verengai maviri kana kupfuura mazwi.

Research basa vana

Vana Vechikoro anoshanda vazhinji mienzaniso iri mhando. Vana nguva imwe neimwe kuedza kuwana nyore uye dzichimhanya nzira yokugadzirisa, asi kwavari nguva dzose unofanira dhipuroya zvinogadzirisa achinyora mberi kana uchida kutaura tsananguro.

Mudzidzisi anoita izvi, vaviri zvinangwa. Chokutanga, vana vanoziva, basa guru kubva panzira hwokushanda chokuwanziridza nemashoko akawanda multi-kukosheswa. Chechipiri, panouya kunzwisisa kuti nzira kunyora mashoko akadai panzvimbo iri asinganyatsoita chaizvo. Kunouya nguva apo vadzidzi pachavo aida kunyora chokuwanziridza iri shongwe.

Zvokukura kudzidza chokuwanziridza noruoko multi-kumukoshesa nhamba.

In yakarongeka mazano kudzidza nyaya iyi zvinoitwa mumatanho dzakawanda. Vanofanira kutevera mumwe pashure pomumwe, ichiita vadzidzi kunzwisisa zvizere zvinoreva kuongororwa zviito. List pakati maitikiro ari mudzidzisi chinotanga zvizere chikumbiro kwacho mashoko vana:

• rakazvimirira kutsvaka vadzidzi nzira kuwana tsika kungoerekana multi-vaikoshesa multipliers;
• kugadzirisa dambudziko vachishandisa associative pfuma, uyewo chokuwanziridza chikwata pamwe zeros;
• vachiwedzera kuidzwa unyanzvi kumativi nhamba;
• shandisa ari Masvomhu pamusoro distributive pfuma chokuwanziridza Kuwedzera uye kubvisa;
• multivalued kushanda uye chokuwanziridza nhamba wechikamu.

Tevera nhano idzi, mudzidzisi anofanira kuramba kuteerera vana pedyo inonzwisisika kubatana zviri kare vakadzidza zvinhu kuti nyanzvi mune itsva nyaya. Students kwete chete mubasa chokuwanziridza, asi kudzidza enzanisa, vafunga uye zvisarudzo.

Mabasa chokuwanziridza muchikoro chepuraimari

Mudzidzisi, vachidzidzisa masvomhu, anoziva kuti kuchauya nguva apo wechina-graders mubvunzo pamusoro mabatirwo wechikamu chokuwanziridza pamusoro multi-digit nhamba. Uye kana iye nevadzidzi vake mumakore matatu yokurovedza - muna 2, 3, uye 4 makirasi - zvinechinangwa uye uchifungisisa kudzidza zvazvinoreva chokuwanziridza uye mibvunzo zvose dzinoitwa oparesheni ichi, nematambudziko kukura enyaya vana vasimuke.

Chii mabasa kare yakanyorerwa vadzidzi uye mudzidzisi wavo?

1. Vadzidze chokuwanziridza patafura kacho ndiko kuti, kuwana mugumisiro mune rimwe danho. Chinodiwa purogiramu kuunza unyanzvi kuti automaticity.
2. The chokuwanziridza pamusoro makuru nhamba iri-mumwe. Mugumisiro vakawana nokudzokorora matanho, izvo vana kare nhaka vakakwana.
3. Chokuwanziridza of multivalued nhamba iri multivalued achishandisa Kudzokororwa nhanho ndima 1 ne2 yokupedzisira mugumisiro inotengwa nevanhu kubatanidza zvenguva kuwirirana tsika uye kukwana zvigadzirwa pamwe discharges.

Kushandisa chokuwanziridza ehupfumi

Pamberi mapeji anotevera vachaonekwa bhuku mienzaniso vachiwanda Mbiru 4 kirasi vanofanira zvakanaka kudzidza kushandisa kadambari kuti streamline ari associative uye distributive pfuma.

By zvakawanika uye kuenzanisa vadzidzi vakasvika pakugumisa kuti associative pfuma chokuwanziridza kuwana yemudzimu multi-digit nhamba kushandiswa chete kana mumwe zvinhu zvinogona kutsiviwa inogadzirwa mumwe-digit nhamba. Uye hazvibviri nguva dzose.

Distributive pfuma chokuwanziridza munyika iyi anoita somunhu zvakasikwa. Vana cherechedzai kuti chinhu chinogona nguva dzose ichabvisa Verengai kana musiyano, saka pfuma rinoshandiswa kuti agadzirise upi muenzaniso iri chokuwanziridza pamusoro multidigit nhamba.

Algorithm pokunyora mashandiro chokuwanziridza iri shongwe

Record vachiwedzera mbiru ndiyo tsindirana vose. Kudzidzisa vana ichi mhando zvakagadzirwa chinotanga dzakasiyana muwande makuru nhamba iri digit.

Vana vanokokwa kuti kusika kwavo Workflow nokuita chokuwanziridza. Zivo algorithm ichi ichaita tibudirire unyanzvi inotungamirwa. Naizvozvo, mudzidzisi haafaniri kupedza nguva uye edza kuita zvose zvaanogona kuti ave nechokwadi kuti aurayiwe Unorudzi zviito kana dzawanda wechikamu kwave akadzidza vana se "kugonesesa".

Zviitwa kuti unyanzvi inotungamirwa

Chokutanga, zvinofanira kucherechedzwa kuti mienzaniso chokuwanziridza ari mbiru, vakapa vana chidzidzo kuti chidzidzo kwakaoma. Pashure vava kuziva chokuwanziridza achishandisa maviri digit nhamba yevana kudzidza chokushandisa-digit matatu, mana digit nhamba.

Dzokushanda mienzaniso unyanzvi dhisikaundi dziwane mhinduro asi pakati pavo nemaune akaronga achinyora zvikanganiso. Basa vechikoro kuziva malfunctioning, tsanangura chikonzero Pakuonekwa kwavo uye zvakarurama chinyorwa.

Zvino, kugadzirisa matambudziko, equations, uye mabasa ose vamwe apo zvakakodzera kuita chokuwanziridza pakati multi-digit nhamba, kunyoresa kunodiwa nevadzidzi kunyora mbiru.

Kutanga kwakaita zvishande Chii ari kudzidza wenyaya "vawande nhamba iri mbiru"

nzeve zvikuru mukirasi, pamusoro kudzidza nyaya iyi, vakapiwa pave zvishande zviito zvakafanana kutsvaka dzakasiyana kugadzirisa dambudziko iri, kusarudza kupfuura nyatsoshanda womuchato.

Kushandisa matunhu nharo, Kutsunga chikonzero-maturo ukama, kuongorora akaona zvinhu inobva vakasarudzwa zvinokosha zviri - ". The chokuwanziridza mu mbiru" rimwe boka rakaumbwa ruzivo zvishande ari kudzidza dingindira

Kudzidzisa vana nzira kuparadzanise multi-digit nhamba uye kunyoresa Mbiru kurekodha rinoitwa chete pashure vana vadzidze kuwanda.