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Wiskunde

Vermenigvuldiging en deling

Vermenigvuldiging

Opvoeders afdeling

Memorandum

1.1 51 012

1.2 164 862

1.3 251 505

Kopkrapper

1. Skryf neer: 4 x 8 = 3 / 2 ; 5 x 8 = 4 / 0; 6 x 8 = 4 / 8

Tel getalle diagonaal (skuins) op.

2.1

= 3 490

2.2

= 6 183

2.3

= 2 458 934

Leerders afdeling

Inhoud

Aktiwiteit: om te bereken deur bewerkings te kies wat geskik is om probleme op te los [lu 1.8.4]

1. Gebruik nou enige metode en bereken:

  • 654 x 78

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1.2 426 x 387

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1.3 729 x 345

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TYD VIR SELFASSESSERING

Dit is belangrik dat ons sal weet hoe jy voel oor die gedeelte van die werk wat tot dusver afgehandel is. Gee vir ons ‘n aanduiding van hoe goed jy die werk verstaan deur die kriteria te lees en dan die toepaslike blokkie met ‘n regmerkie te merk.

RY WAG STOP
Ek verstaan magte van 10 en kan berekeninge daarmee doen. (LU 1.10) _______ _______ _______
Ek kan my sakrekenaar programmeer om in magte van 10 te vermenigvuldig. (LU 1.10) _______ _______ _______
Ek kan ’n alternatiewe metode gebruik i.p.v. om met 25 te vermenigvuldig. (LU 1.10) _______ _______ _______
Ek kan met 125 vermenigvuldig sonder om 125 as vermenigvuldiger te gebruik.(LU 1.10) _______ _______ _______
Ek ken my tafels. (LU 1.9) _______ _______ _______
Ek verstaan al die vermenigvuldigings-metodes in die module. (LU 1.11 en LU 2.6) _______ _______ _______
Ek kan die produk van enige 2 getalle sonder my sakrekenaar bereken. (LU 1.8) _______ _______ _______

Kopkrapper!

In 1617 het Lord John Napier die volgende tabel vir vermenigvuldiging in Skotland gebruik:

456 × 8 het hy so bereken:

Sy antwoord was 3 648.

1. Werk saam met ’n maat. Kan julle sy metode verduidelik?

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2. Gebruik nou die tabel en bereken:

2.1 698 x 5

= ___________________

2.2 687 x 9

= ___________________

2.3 Hoe sou julle 6 437 x 382 met behulp van die tabel bereken?

= ___________________

2.4 Gee nou vir jou maat ’n som om met behulp van die tabel uit te werk! Skryf jou som, die berekening en die antwoord hieronder neer.

2.5 Kontroleer jou maat se som.

Assessering

Leeruitkomste 1: Die leerder is in staat om getalle en die verwantskappe daarvan te herken, te beskryf en voor te stel, en om tydens probleemoplossing bevoeg en met selfvertroue te tel, te skat, te bereken en te kontroleer.

Assesseringstandaard 1.11: Dit is duidelik wanneer die leerder ‘n verskeidenheid strategieë gebruik om oplossings te kontroleer en die redelikheid van oplossings te beoordeel.

Leeruitkomste 2: Die leerder is in staat om patrone en verwantskappe te herken, te beskryf en voor te stel en probleme op te los deur algebraïese taal en vaardighede te gebruik.

Assesseringstandaard 2.6: Dit is duidelik wanneer die leerder deur bespreking en vergelyking, die ekwivalensie van verskillende beskrywings van dieselfde verwantskap of reël wat soos volg voorgestel word bepaal:

2.6.3: met getallesinne.

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
I'm interested in nanotube
Uday
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
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
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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