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Wiskunde

Getalbegrip, optelling en aftrekking

Opvoeders afdeling

Memorandum

1.

1.1 8 366

1.2 7 452

1.3 8 664

1.4 9 548

2.

2.1 6 750

2.2 8 260

2.3 3 516

2.4 9 379

3.

3.1<

3.2<

3.3<

3.4<

Vrae op pp. 11-12

1. 46

2. 26

3. 39 337

4. 5 000 I)

5. 4 072 j)

6. 4 440

7. 7 739

8. =

9. 14; 5

10. 1 000; 8

Leerders afdeling

Inhoud

Aktiwiteit: om getalle te herken en met mekaar te vergelyk [lu 1.3]

Om korrek te kan bereken [lu 1.8]

MEER OF MINDER?

1. As jy weet waar die tiene en honderde in ‘n getal is (plekwaarde), is dit maklik om met 10 of 100 op te tel (meer as) of af te trek (minder as). Kyk of jy dadelik die antwoord kan neerskryf. Watter getal is:

1.1 10 meer as 8 356?_____________________________________________

1.2 10 minder as 7 462? ______________________________________________

1.3 100 meer as 8 564? ____________________________________________

1.4 100 minder as 9 648? _____________________________________________

2. In hierdie aktiwiteit moet jy die vraag baie goed lees en jou antwoord met die gegewe getal vergelyk om seker te maak of jy korrek gewerk het.

2.1 6 740 is 10 minder as _____________________________________________

  • 8 360 is 100 meer as ____________________________________________

2.3 3 526 is 10 meer as _____________________________________________

2.4 9 279 is 100 minder as___________________________________________

Let op: “minder as” beteken nou “tel op” om die antwoord te kry, en “meer as” beteken “trek af” om die antwoord te bereken!

Vergelyking en Rangskikking

Onthou jy nog?

>beteken "groter as"<beteken "kleiner as" = beteken “is gelyk aan/ewe groot”

3. Ons kan van die Wiskundige simbole<;>en = gebruik maak wanneer ons antwoorde met mekaar vergelyk. Dit is belangrik dat jy die antwoorde korrek sal bereken, anders is die simbool verkeerd! Bereken nou die antwoord waar nodig, vergelyk die antwoord links van die  met dié regs van die  en vul dan in:<;>of =:

3.1 (5 × 6) + 9 * 41

3.2 8 921 * 9 821

3.3 2 356 * 2 000 + 500 + 30 + 6

3.4 4 000 + 200 + 50 + 7 * 4 275

RET MET DIE SAKREKENAAR!

Werk saam met ’n maat. Julle benodig een sakrekenaar.

  • Speler A sleutel enige 4-syfer getal op die sakrekenaar in, bv. 4 986.
  • Speler B "skiet" nou enige van die syfers af deur van aftrekking gebruik te maak, bv. 4 986 - 80 = 4 906.
  • Maak nou beurte om die syfers af te "skiet". Die wenner is die speler wat 0 op die vertoonskerm kry.

ASSESSEER JOUSELF VOORDAT JY VOORTGAAN!

Voltooi die volgende deur die toepaslike blokkie te merk:

Glad nie Redelik goed Goed Uit-stekend
  • Ek kan die patrone in getalrye sien en die getalpatroon voltooi (LU 2.1)
  • Ek kan getalle van groot na klein en andersom rangskik (LU 1.3)
  • Ek kan verwantskapstekens (<;>; =) korrek invul (LU 1.3)

10

K om ons kyk hoe vorder jy!

  • Kan jy die volgende vrae korrek beantwoord?

1. Hoeveel honderde is daar in 4 600?__________________________________

2. Hoeveel duisende is daar in 26 000? _________________________________

3. Omkring al die onewe getalle in die volgende:

14 ; 39 ; 128 ; 337 ; 4 000

4. Wat is die waarde van die 5 in 5 713?_________________________________

5. Watter getal word deur die volgende diagram voorgestel?

6. Omkring die grootste getal:

4 040 ; 4 404 ; 4 440 ; 4 004

7. Watter getal is 100 meer as 7 639?_______________________________

8. Vul in>;<of = :

40 + 200 + 3 000 + 6 ____________________ 3 246

9. Voltooi die patroon:

41 ; 32 ; 23 __________________ ; __________________

10. Voltooi:

2 386 = (2 × _________) + (3 × 100) + (_________ × 10) + (6 × 1)

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 1.3: Dit is duidelik wanneer die leerder getalle herken en voorstel sodat dit beskryf en vergelyk kan word:

1.3.1 heelgetalle tot minstens 6-syfergetalle;

1.3.6 veelvoude van enkelsyfergetalle tot minstens 100;

1.3.7 faktore van minstens enige 2-syferheelgetal.

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

1.8.1 afronding tot die naaste 5, 10, 100 of 1 000;

1.8.2 optel en aftrek van heelgetalle met minstens 5 syfers.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
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
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
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 5. OpenStax CNX. Sep 07, 2009 Download for free at http://cnx.org/content/col10993/1.1
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