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Thaum twg yuav tsum tau siv cov hlua khi hauv kev sau ntawv?

Cov txheej txheem:

Thaum twg yuav tsum tau siv cov hlua khi hauv kev sau ntawv?
Thaum twg yuav tsum tau siv cov hlua khi hauv kev sau ntawv?

Video: Thaum twg yuav tsum tau siv cov hlua khi hauv kev sau ntawv?

Video: Thaum twg yuav tsum tau siv cov hlua khi hauv kev sau ntawv?
Video: wb los yuam kev rau ib lub neej Nkauj Tawm Tshiab 2021 2024, Tej zaum
Anonim

Brackets yog siv txhawm rau piav qhia, kho, qhia meej, lossis cov lus pom rau hauv cov khoom siv. Brackets yeej ib txwm siv ua khub; koj yuav tsum muaj qhov qhib thiab kaw kaw. Tsis txhob cuam tshuam cov kab ke nrog cov kab lus ().

Koj siv cov kab lus li cas hauv kab lus?

Brackets siv tau los ntxiv cov ntaub ntawv ntxiv rau kab lus

  1. Tsis muaj kev sib tw: Albert tus neeg txawv teb chaws tau saib xyuas lub pob tawg.
  2. Nrog cov hlua: Albert tus neeg txawv teb chaws (tsis muaj kev cob qhia) yog tus saib xyuas lub pob tawg.

Yuav ua li cas siv cov brackets hauv kev sau piv txwv?

Brackets yog feem ntau yog siv los piav lossis qhia meej cov ntawv qub los ntawm tus kws kho. Piv txwv li: Nws [Martha] yog ib tug phooj ywg zoo ntawm peb. Hauv qhov piv txwv no "Martha" tsis yog ib feem ntawm cov kab lus qub, thiab tus editor ntxiv nws kom meej.

Koj siv cov hlua nyob qhov twg?

Kev siv cov hlua khi tuaj yeem ua ob peb daim ntawv:

  1. Qhia ntxiv, kho, lossis tawm tswv yim hauv cov lus hais ncaj qha: …
  2. Kho hloov ib feem ntawm ib lo lus, qhia qhov tsim nyog hloov pauv ntawm nws daim ntawv qub: …
  3. Tau hloov cov kab lus hauv kab lus: …
  4. Qhia cov lus qhia ntxiv hauv kab lus:

Yuav ua li cas yog txoj cai rau brackets?

Txoj cai BODMAS hais tias peb yuav tsum suav cov Brackets ua ntej (2 + 4=6) , ces Orders (52=25), tom qab ntawd ib qho Division lossis Multiplication (3 x 6 (cov lus teb rau cov brackets)=18), thiab thaum kawg ib qho Ntxiv lossis rho tawm (18 + 25=43).

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