Het jy al ooit gewonder hoekom 3 x -2 = -6? Of met ander woorde, hoekom ‘n positiewe heelgetal vermenigvuldig met ‘n negatiewe heelgetal se antwoord ‘n negatiewe heelgetal is? Miskien het jy ook al gewonder waarom ‘n negatiewe heelgetal vermenigvuldig met ‘n negatiewe heelgetal se antwoord ‘n positiewe heelgetal is, soos –3 x -3…
Aangesien koers die vergelyking is van twee hoeveelhede van verskillende soorte, kan ons die beginsel van koers toepas om wisselkoers te bereken. Wisselkoers is wanneer jy een land se geld wil ruil of wissel vir ‘n ander land se geld. Byvoorbeeld, as daar ‘n wisselkoers is van R13,95 vir $1, kan jy R10 000 wissel…
Ons gebruik wetenskaplike notasie wanneer ons baie groot of baie klein getalle skryf. Wetenskaplike notasie is wanneer ons een syfer skryf gevolg deur die desimale simbool (in Suid-Afrika gebruik ons ‘n komma) en dan die oorblywende deel. Maar, aangesien ons eintlik die desimale simbool van die oorspronklike getal ‘skuif’ moet ons die getal met ‘n…
Wat het gewone breuke, persentasies en desimale getalle (breuke) in gemeen? Hulle kan almal omgeskakel word na mekaar. Wanneer ‘n gewone breuk, soos drie kwarte omgeskakel word na ‘n persentasie, moet ons die noemer gelyk maak aan 100. Hoe doen ons dit? Vermenigvuldig die huidige noemer van kwarte met 25 sodat die noemer 100 (honderstes)…
Dit is belangrik om te weet hoe om bewerkings met eksponente te doen en jy kan dit slegs doen as jy die eksponentwette vir reële getalle ken. Hierdie wiskunde les vir Graad 7, 8 en 9 gaan jou help om op die uitkyk te wees vir grondtalle wat dieselfde is en of daardie grondtalle met…
Die reële getalstelsel bestaan uit rasionale en irrasionale getalle, en word in hierdie video verduidelik. Rasionale getalle bestaan uit verskeie getalreekse. Eerstens kry ons natuurlike getalle. Natuurlike getalle begin by 1 en ons kan dit skryf as N = {1; 2; 3; 4; …}. Dan het ons telgetalle wat uit al die natuurlike getalle bestaan…
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