Dab tsi yog cov txiaj ntsig ntawm kev rho tawm ntawm cov lej?
Dab tsi yog cov txiaj ntsig ntawm kev rho tawm ntawm cov lej?

Video: Dab tsi yog cov txiaj ntsig ntawm kev rho tawm ntawm cov lej?

Video: Dab tsi yog cov txiaj ntsig ntawm kev rho tawm ntawm cov lej?
Video: 6 Nqi Lus Qhia Kev Ua neej ( leej twg mloog lub neej yuav zoo tuaj) 2024, Kaum ib hlis
Anonim

Properties of Integers

Integer Property Ntxiv Kev rho tawm
Kev sib txuas lus Khoom x + y = y + x x – y ≠ y – x
Associative Khoom x + (y + z) = (x + y) + z (x – y) – z ≠ x – (y – z)
Tus kheej Khoom x + 0 = x = 0 x – 0 = x ≠ 0 – x
Kaw Khoom x + y ∈ Z x – y ∈ Z

Kuj paub, dab tsi yog cov khoom ntawm kev rho tawm?

Properties of Subtraction Qhov no txhais tau tias tag nrho cov lej tsis raug kaw hauv qab rho tawm . Yog tias a thiab b yog ob tus lej tag nrho thiab a − b = c, ces c tsis yog tus lej tag nrho. A = 7 thiab b = 5, a − b = 7 − 5 = 2 and b − a = 5 − 7 = −2 (tsis suav tag nrho).

Tom qab ntawd, lo lus nug yog, dab tsi yog cov khoom ntawm cov lej? Commutative Property rau Ntxiv, Associative Khoom rau Ntxiv, Distributive Property , Identity Property for Addition, Identity Property for Multiplication, Inverse Property for Addition and Zero Property for Multiplication. Peb lub zog ntawm cov lej tau piav qhia.

Tsuas yog li ntawd, 4 yam khoom ntawm kev rho tawm yog dab tsi?

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

Muaj pes tsawg lub zog ntawm cov lej muaj?

peb lub zog

Pom zoo: