Wanneer jy desimale getalle met veelvoude van 10 moet maal (bv. 10, 100 en 1 000)|, moet nie net dadelik die “komma skuif” nie. Verstaan eers wat jy doen. B.v. 1,12 x 100. Jy kan 1,12 skryf as 112 honderdstes (as ‘n gewone breuk) en wanneer jy 112/100 met 100 maal, “kanselleer” die 100s mekaar uit….
Wanneer jy desimale getalle deel met natuurlike getalle, volg jy basies die langdeel metode. Hou net mooi kop wanneer jy “oor die komma beweeg”. Onthou ook dat jy nie ‘n res kan hê met hierdie somme nie, aangesien die plekwaardes aan die regterkant van die komma reeds ‘n res is. In die geval waar die…
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…
Hoe kan jy die KGV van twee groot getalle soos 36 en 225 bepaal? Met behulp van daardie getalle se priemfaktore. Wanneer jy 36 skryf as ‘n produk van priemfaktore, sal dit 22 x 32 wees en 225 as ‘n produk van priemfaktore sal 32 x 52 wees. Hoe bepaal jy dan nou die KGV?…
‘n Maklike manier om desimale getalle op te tel of af te trek is deur gebruik te maak van die kolommetode. Wanneer jy hierdie metode gebruik moet jy altyd die kommas van die verskillende getalle onder mekaar skryf en daarna die korrekte getalle by die ooreenkomstige plekwaardes skryf. Daarna tel jy op of trek jy…
Wat is die verskil tussen ‘n desimale breuk en ‘n desimale getal? ‘n Desimale breuk verwys na ‘n desimale getal in basis 10. In Suid-Afrika gebruik ons ‘n komma as die desimale simbool. Die plekwaardes aan die regterkant van die komma is tiendes (t), honderdstes (h), duisendstes (d) en so aan. Wat is die grootste…
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