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Getalbegrip, optelling en aftrekking


Opvoeders afdeling


1.1 1 065

1.2 2 466

1.3 28 745

1.4 50 271

1.5 373 097

1.6 462 563


12 54 24

42 30 18

36 6 48

Leerders afdeling


Aktiwiteit: om te bereken deur bewerkings te kies wat geskik is om probleme op te los [lo 1.8.2]

Om ‘n reeks tegnieke te gebruik om berekeninge te doen [lo 1.10.1]

1. Lees die volgende vrae aandagtig. Besluit dan watter bewerkings jy moet uitvoer om die antwoorde te vind. Gebruik jou sakrekenaar en skryf neer watter getal is:

1.1 598 meer as 467

1.2 2 346 minder as 4 812

1.3 5 098 meer as 23 647

1.4 46 138 minder as 96 409

1.5 123 516 meer as 249 581

1.6 435 091 minder as 897 654


  • Voltooi die volgende towervierkant. Die som van die totale af, dwars en skuins (diagonaal) is 90.
12 _______ _______
_______ 30 18
_______ _______ _______

Tyd vir selfassessering

Ek kan in honderde vorentoe en terug tel. (LU 1.9) 1 2 3 4
Ek kan in duisende vorentoe en terug tel. (LU 1.9) 1 2 3 4
Ek kan in tienduisende vorentoe en terug tel. (LU 1.9) 1 2 3 4
Ek kan getalrye voltooi deur na die patrone te kyk. (LU 2.1) 1 2 3 4
Ek kan getalle in uitgebreide notasie skryf. (LU 1.10) 1 2 3 4
Ek kan honderdduisende van ’n getallelyn af lees. (LU 1.4 en LU 1.10) 1 2 3 4
Ek kan verwantskapstekens (<;>; =) korrek invul. (LU 1.3) 1 2 3 4


Leeruitkomste 1: Die leerder is in staat om getalle en hul verwantskappe te herken, te beskryf en voor te stel. Hulle kan ook met bekwaamheid en vertroue tel, skat, bereken en kontroleer tydens die oplos van probleme.

Assesseringstandaard 1.8: Dit is duidelik wanneer die leerder skat en bereken deur geskikte bewerkings vir die oplossing van probleme in verband met die volgende te kies en te gebruik:

1.8.2: optel en aftrek van heelgetalle;

Assesseringstandaard 1.10: Dit is duidelik wanneer die leerder ‘n verskeidenheid tegnieke gebruik om sowel skriftelike as hoofberekeninge met heelgetalle te doen, insluitend:

1.10.1: optelling, aftrekking en vermenigvuldiging in kolomme.

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
hoe werk werkbord in wiskunde
Nel Reply
Nel Reply

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Source:  OpenStax, Wiskunde graad 6. OpenStax CNX. Sep 15, 2009 Download for free at http://cnx.org/content/col11072/1.1
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