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Wiskunde

Getalbegrip, optelling en aftrekking

Aftrekking

Opvoeders afdeling

Memorandum

Leerders afdeling

Inhoud

Aktiwiteit 3.11: om probleme in konteks op te los [lu 1.6.1]

Om ‘n reeks tegnieke te gebruik om berekeninge te doen [lu 1.8.2]

* * Hierdie is ‘n taak vir jou portefeulje. Julle het lekker gesels oor ‘n begroting. Beantwoord nou die volgende vrae. Werk so netjies soos jy kan, maar kyk eers hoe jou taak geassesseer gaan word!

Vind nou tuis uit:

1. Werk jou ouers volgens ’n begroting elke maand?

2. Maak ’n lys van alles waarvoor jou ouers maandeliks moet begroot.

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3. Wat is die grootste uitgawe vir jul gesin elke maand?____________________

4. Watter bedrag begroot jou ouers (min of meer – jy kan afrond) vir kruideniersware elke maand?_____________________________________________

5. Wat is die verskil tussen hierdie bedrag en jou skoolfonds wat jou ouers maandeliks moet betaal?_____________________________________

6. Hoeveel, dink jy, behoort ’n gesin van vier (twee volwassenes en twee tiener-kinders) te begroot vir ontspanning (uiteet, fliek, ens.) elke maand? ______________

Verduidelik hoe jy jou antwoord kry.

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7. Stel nou jou eie begroting vir die volgende maand op vir JOUSELF! (d.w.s. hoeveel geld jy nodig het en waarvoor).

8. Hoeveel sal jy oorhê om te spaar as jy R300 sakgeld gekry het?

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Assessering: begroting

Kriteria 1 2 3 4
Volledigheid Feitlik geen opdrag is uitgevoer nie. Die helfte opdragte is uitgevoer. Een of twee opdragte is nie uitgevoer nie. Al die opdragte is uitgevoer.
Netheid en organisasie Werk is slordig en ongeorganiseerd. Georganiseerd, maar moeilik om te lees. Netjies en georganiseerd, maklik leesbaar. Netjiese, duidelik uiteengesette werk; duidelik leesbaar.
Korrektheid van berekenings Al die antwoorde is verkeerd bereken. Baie foute is begaan. Min foute is gemaak. Antwoorde is almal korrek bereken.

Toets

1. Watter getalle kom kort sodat die totaal in elke rigting 47 sal wees?

(3)

2. Ebrahim moes die volgende bereken: 130 000 – 27 864

2.1 975 – 325 = __________________________________

2.2 1 050 – _______________________________________ = 900

2.3 103__________ – 102_____________ = ____________ (3)

3. Waar of Onwaar?

3.1 Die verskil tussen 7 000 en 3 628 is 3 372 ____________________

3.2 25 minder as 18 500 is 18 275 ________________________ (2)

4. Ebrahim moes die volgende bereken: 130 000 – 27 864: 130 000 – 27 864

Hy het dit so gedoen:

Sy berekening is egter foutief. Omkring elke fout wat jy sien. (2)

5. Verbeter nou Ebrahim se som .

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6. Verminder 408 276 met 129 479.

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7. As die aftrektal 5 346 200 is en die verskil is 1 326 408, wat is die aftrekker?

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Assessment

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 1.6: Dit is duidelik wanneer die leerder probleme oplos in konteks, insluitend kontekste wat gebruik kan word om ‘n bewustheid van ander leerareas, asook van menseregte-, sosiale, ekonomiese en omgewingskwessies, te bevorder soos:

1.6.1: finansiële kontekste (insluitend koop en verkoop, wins en verlies, eenvoudige begrotings, lees en vertolking van rekeninge, en afslag);

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.

.

Questions & Answers

how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit 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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