Yuav ua li cas qhia tus me nyuam kom sai thiab yooj yim kawm qhov kev sib npaug ntawm tus lej?
Xaiv lub sijhawm zoo rau koj cov kev tshawb fawb. Yog hais tias tus me nyuam nkees, tsis tau pw, tshaib plab los yog tibneeg hu tauj coob nrog kev lom zem, kev ua haujlwm zoo dua rau ncua sijhawm. Txhawm rau taw qhia tus me nyuam, pib cov piv txwv yooj yim ntawm 0,1,2,3. Koj tuaj yeem piav qhia rau tus menyuam txog kev sib npaug ntawm kev sib npaug nrog kev pabcuam ntawm qhov kev paub ntawm qhov kev paub ua ntxiv - ntxiv.
Raws li txoj cai, nws yooj yim los qhia ib tug me nyuam los kawm cov kab ntawv sib npaug ntawm kev siv Pythagorean lub rooj. Ua ntej ntawd tau qhia tus tub ntxhais kawm hais tias muaj ntau tus zauv los ntawm kab hauv kab rov tav thiab rau txhua tus lej ntawm sab sab qab zog, lo lus teb yuav tsum tau nrhiav tom qhov kev sib tshuam.
Hmoov tsis, muaj ntau tus menyuam, txawm tias paub txog txoj cai ntawm kev sib npaug (multiplication), nco ntsoov nws, lossis tag nrho tso lawv txoj kev kawm. Nyob rau hauv xws li mob, koj yuav tsum tau ua siab ntev thiab kev xav. Nws yog ib qho yooj yim kawm lub npais lej rau tus me nyuam, tsis muaj dab tsi ntau tshaj li kev ua si. Piv txwv li, ib daim ntawv xeem nrog ntawv zoo li "5x3 =?", "6x4 =?" Thiab yog li ntawd. Koj tuaj yeem cuam tshuam cov lus nug los ntawm hom: "6x? = 24 ". Kuj rau txoj kev kawm koj tuaj yeem txuas tau cov ntiv tes ua si, cov lus sib dhos, cov nplhaib, cov nkauj, cov lus fairies thiab cov koom haum.
Raws li txoj cai, cov niam txiv tsis nco qab - txhawm rau kawm kom paub meej thiab ua tib zoo kawm cov lus sib npaug nrog tus menyuam,
Ntxiv rau qhov no, ua ntej koj pib kawm, koj yuav tsum qhia txog qhov txawv txav ntawm qee cov cai thiab cov axioms. Piv txwv, muaj ntau tus naj npawb los ntawm zero, vim li ntawd, yuav muaj qee zaum, tag nrho cov piv txwv 10 yuav xaus nrog 0, thiab cov piv txwv nrog 5 rau 5 los sis 0. Nws tseem ceeb heev kom ceeb toom cov txav ntawm qhov khoom tsis hloov ntawm qhov chaw multipliers.
Siv peb cov lus pom zoo thiab tsis txhob hnov qab txog tus cwj pwm ntawm koj tus menyuam, thiab tom qab ntawd koj yuav paub tias yuav pab koj tus menyuam kom nws paub sai npaum li cas.