Dab tsi yog cov cuab yeej ntawm cov lej?
Dab tsi yog cov cuab yeej ntawm cov lej?

Video: Dab tsi yog cov cuab yeej ntawm cov lej?

Video: Dab tsi yog cov cuab yeej ntawm cov lej?
Video: Dab ntxwg nyoos yog leej twg ...zaj no zoo heev. 2024, Kaum ib hlis
Anonim

Kev sib txuas lus Khoom rau Ntxiv, Associative Khoom rau Ntxiv, Distributive Khoom , Tus kheej Khoom rau Ntxiv, Identity Khoom rau Multiplication, Inverse Khoom rau Ntxiv thiab Zero Khoom rau Multiplication. Peb cov khoom ntawm cov lej tau piav qhia.

Ntawm no, pes tsawg lub zog ntawm cov lej muaj?

peb lub zog

Ib yam li ntawd, dab tsi yog cov khoom siv hauv kev ntxiv thiab sib npaug ntawm cov lej? Muaj plaub (4) qhov yooj yim cov khoom ntawm tiag tus lej :yog; commutative, associative, distributive thiab tus kheej. Cov no khoom tsuas yog siv rau kev ua haujlwm ntawm sib ntxiv thiab sib npaug . Qhov ntawd txhais tau tias kev rho tawm thiab faib tsis muaj cov no khoom ua hauv.

Hauv qhov no, dab tsi yog commutative property integers?

Cov commutative khoom ntawm qhov ntxiv hais tias peb tuaj yeem ntxiv cov lej hauv txhua qhov kev txiav txim. Koj tuaj yeem nco txog commutative khoom los ntawm kev xav ntawm cov lej "kev mus los," lossis hloov chaw. Qhov piv txwv qhia peb tias "tsis zoo ob ntxiv rau plaub" yog tib yam li "zoo plaub ntxiv rau qhov tsis zoo." -2 + 4 = 4 + (-2)

Cov lej thiab piv txwv yog dab tsi?

Ib tus lej (hais IN-tuh-jer) yog tus lej tag nrho (tsis yog tus lej feem) uas tuaj yeem ua tau zoo, tsis zoo, lossis xoom. Piv txwv ntawm tus lej yog: -5, 1, 5, 8, 97, thiab 3, 043. Piv txwv ntawm tus lej uas tsis yog tus lej yog: -1.43, 1 3/4, 3.14,. 09, 5, 643.1.

Pom zoo: