Hauv lej yog dab tsi rov ua pawg?

Cov txheej txheem:

Hauv lej yog dab tsi rov ua pawg?
Hauv lej yog dab tsi rov ua pawg?
Anonim

Regrouping in lej yog thaum koj ua pab pawg ntawm kaum thaum ua haujlwm xws li ntxiv lossis rho tawm. … Piv txwv li, hauv 2 tus lej ntxiv, tej zaum koj yuav muaj 15 + 17. Nyob rau hauv rooj plaub no, koj yuav tsum rov ua pawg. Thaum koj ntxiv 5 + 7 koj muaj 12, lossis ib kaum thiab ob chav.

piv txwv ntawm kev sib koom ua ke yog dab tsi?

Piv txwv li, kom rho tawm 52 − 38, peb sau 52 li 50 + 2 (txiav nws mus rau hauv kaum thiab ib qho). Ces, regrouping txhais tias 50 + 2 ua 40 + 12.

Koj piav qhia ua pawg li cas?

Regroup txhais li cas? Hauv kev ua lej, kev sib koom ua ke tuaj yeem txhais tau tias yog txheej txheem ntawm kev ua pab pawg ntawm kaum thaum ua haujlwm xws li ntxiv thiab rho tawm nrog ob tus lej lossis loj dua. Txhawm rau rov ua pawg txhais tau tias rov npaj cov pab pawg hauv qhov chaw muaj nqis los ua haujlwm.

Koj piav qhia txog kev sib koom ua ke rau cov tub ntxhais kawm li cas?

Qhia txoj hauv kev kom rov muab tus lej rov qab. Piv txwv li, piav qhia rau cov tub ntxhais kawm yog tias cov lej hauv qhov chaw yog 10 lossis tshaj, kaum yuav tsum tau muab rov ua pawg thiab sau ua tus lej hauv kaum qhov. Qhov seem ntawm tus lej raug muab tso ua ib feem ntawm cov lus teb hauv qhov chaw.

Double Digit Addition with Regrouping - 1st and 2nd Grade

Double Digit Addition with Regrouping - 1st and 2nd Grade
Double Digit Addition with Regrouping - 1st and 2nd Grade
18 cov lus nug ntsig txog pom

Pom zoo:

Nthuav cov khoom
Puas yog sind walkie talkies?
Nyeem ntxiv

Puas yog sind walkie talkies?

A walkie-talkie, ntau lub npe hu ua handheld transceiver, yog ib lub tes tuav, portable, ob-txoj kev xov tooj cua transceiver. Nws txoj kev loj hlob thaum Tsov Rog Ntiaj Teb Zaum Ob tau ua ntau yam rau Donald Hings, xov tooj cua engineer Alfred J.

Puas tau tilapia thiab koi nyob ua ke?
Nyeem ntxiv

Puas tau tilapia thiab koi nyob ua ke?

Puas yuav muaj teeb meem nrog kev sib xyaw hom? Yog, Tilapia tuaj yeem nrog Koi; Txawm li cas los xij, zoo ib yam li kev sib xyaw ntawm Tilapia thiab Bass, cov neeg cog qoob loo yuav tsum tau cais cov tsiaj me los ntawm cov neeg laus kom tsis txhob noj cov ntses yau.

Can ick guard tua ntses?
Nyeem ntxiv

Can ick guard tua ntses?

Cov tshuaj ick no tua tag nrho kuv cov ntses ib hmos, suav nrog betta, guppies thiab octos. Kuv txawm siv ib nrab koob tshuaj kom nyob rau sab nyab xeeb. … Kuv pom tias thaum tsuas yog betta muaj 3 qhov chaw thiab maj mam khawb nws lub cev ib ntus ntawm no thiab qhov ntawd, yog thaum kuv pom.