Video: Koj ua li cas cov khoom ib nrab?
2024 Tus sau: Edward Hancock | [email protected]. Kawg hloov kho: 2023-12-16 01:32
daws txhua qhov teeb meem los ntawm kev muab txhua tus lej ntawm ib qho los ntawm txhua tus lej hauv lwm qhov, suav nrog qhov chaw tus nqi ntawm txhua tus lej. 3. Ntxiv cov cov khoom ib nrab nrhiav tag nrho khoom.
Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog ib feem ntawm cov khoom piv txwv?
Kev txhais lus rau khoom ib nrab A khoom tsim los ntawm kev muab tus lej sib npaug los ntawm ib tus lej ntawm tus lej sib npaug thaum tus lej muaj ntau tshaj ib tus lej. Rau piv txwv , cov khoom ntawm 67 thiab 12 tuaj yeem suav ua tus lej ntawm ob cov khoom ib nrab , 134 (67 X 2) + 670 (67 X 10), los yog 804.
Ib yam li ntawd, cov khoom ib nrab yog dab tsi thiab kev sib koom ua ke? Cov khoom ib nrab thiab rov ua pawg zoo ib yam vim hais tias ob txoj kev yog muab los ntawm ib tus lej thiab yog tias tus khoom ntawm tus lej muaj 2 tus lej nws tuaj yeem nqa tau. Cov khoom ib nrab thiab rov ua pawg txawv vim Cov khoom ib nrab ua multiplication step by step thiab kev koom ua ke yog niaj zaus multiplication.
Hais txog qhov no, koj yuav nrhiav tau cov khoom ib nrab li cas?
Nrhiav Cov khoom ib nrab Cov khoom ib nrab txoj kev suav nrog kev sib faib txhua tus lej ntawm tus lej nyob rau hauv lem nrog txhua tus lej ntawm lwm qhov uas txhua tus lej tuav nws qhov chaw. (Yog li, 2 hauv 23 yuav ua tau 20.) Piv txwv li, 23 x 42 yuav dhau los ua (20 x 40) + (20 x 2) + (3 x 40) + (3 x 2).
Kev siv cov khoom siv ib nrab sib txawv li cas?
Multiplication siv cov khoom ib nrab yog txawv los ntawm multiplication siv regroup vim in cov khoom ib nrab koj yuav tsum ntxiv thiab nyob rau hauv regrouping koj kwv yees cov yam. Muaj zoo sib xws vim regrouping thiab cov khoom ib nrab yog siv txoj kev kev sib npaug.
Pom zoo:
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