Cov txheej txheem:

Dab tsi yog qhov tseeb qhov tseeb hauv lej?
Dab tsi yog qhov tseeb qhov tseeb hauv lej?

Video: Dab tsi yog qhov tseeb qhov tseeb hauv lej?

Video: Dab tsi yog qhov tseeb qhov tseeb hauv lej?
Video: Qhov tseeb yog qhov tseeb MR FBI (Yee Lee) 2024, Kaum ib hlis
Anonim

Qhov rov ntxiv ntawm tib tus lej yog qhia los ntawm kev sib npaug hauv luv. Yog li, qhov sib ntxiv ntawm 2 tsib zaug yog sib npaug rau 2 qhov sib npaug ntawm 5. Yog li, 3 × 6 = 18 tias 3 muab 6 yog sib npaug rau 18, lossis 3 rau 6 yog sib npaug rau 18, lossis cov khoom ntawm 3 thiab 6 yog 18.3 × 6 = 18 hu ua a multiplication fact.

Ib yam li ntawd, tib neeg nug, ua li cas koj sau qhov tseeb sib npaug?

Muab 10 x tus lej, ces rho tus lej rau 9 qhov tseeb qhov tseeb

  1. Piv txwv li: 9 x 4. Thawj muab 4 x 10 = 40. Ces rho 4 ntawm 40 kom tau 36.
  2. Luas = 9 x 8. 10 x 8 = 80, 80 – 8 = 72. 9 x 8 = 72.
  3. Nco ntsoov ob tus lej hauv cov khoom yuav ntxiv txog 9! 9 x 4 = 36, 3 + 6 = 9.

Tom qab ntawd, lo lus nug yog, dab tsi yog qhov tseeb hauv lej? A qhov tseeb tsev neeg yog ib pab pawg lej qhov tseeb siv tib tus lej. Nyob rau hauv cov ntaub ntawv ntawm ntxiv / rho, koj siv peb tus lej thiab tau txais plaub qhov tseeb. Piv txwv li, koj tuaj yeem tsim ib qho qhov tseeb tsev neeg siv peb tus lej 10, 2, thiab 12: 10 + 2 = 12, 2 + 10 = 12, 12 − 10 = 2, thiab 12 − 2 = 10.

Hauv qhov no, lo lus twg txhais tau tias muab ntau hauv lej?

Multiplication - khoom, ntau , multiplied by, sijhawm. Division-quotient, dividend, faib, faib los ntawm, txhua, ib, nruab nrab, faib sib npaug. Sib npaug-zoo ib yam, sib npaug, tib yam li, sib npaug, sib npaug.

Dab tsi yog qhov kev faib tawm qhov tseeb?

Kev faib yog cov txheej txheem ntawm kev noj tag nrho cov khoom lossis ib pawg ntawm cov khoom thiab sib cais, lossis faib ua pawg sib npaug. Thaum koj siv kev faib , koj tab tom pib nrog tus lej loj dua, thiab tawg rau hauv me me, sib npaug. Lub hom phiaj yog saib seb pes tsawg zaus tus lej me yuav haum rau tus lej loj.

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