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Wiskunde

Graad 8

Getallestelsel

(natuurlike- en telgetalle)

Module 1

Verskillende soorte getalle

KLASOPDRAG

  • Kom ontdek stap vir stap meer oor die getallestelsel....

1. Algemeen: Verskillende soorte getalle

Gee voorbeelde van elk van die volgende getalle:

  • Natuurlike getalle N = {..................................................}
  • Telgetalle N 0 = {..................................................}
  • Heelgetalle Z+ = {..................................................}

Z- = {..................................................}

  • Rasionale getalle Q = {..................................................}
  • Irrasionale getalle Q’ = {..................................................}
  • Reële getalle R = {..................................................}

2. Natuurlike getalle

Priemgetalle ={..................................................} Saamgestelde getalle ={..................................................}
Definisie: .........................................................................................…………..................................................…………..................................................………….......... Definisie: .................................................................…………..........................................................................…………..................................................…………..........

Priemgetalle + Saamgestelde getalle = Natuurlike getalle

3. Deelbaarheidsreëls

Kies elke keer ‘n getal wat deelbaar is deur die gegewe deler en probeer ‘n reël by elke geval aflei.

Getal Deler Deelbaarheidsreël
3.1 2
3.2 3
3.3 4
3.4 5
3.5 6
3.6 8
3.7 9
3.8 10
3.9 11

4. Bepaal deur watter getalle (3.1 - 3.9) 61 226 deelbaar is, en gee ‘n rede by elk.

5. Wat verstaan jy onder elk van die volgende terme:

5.1 Veelvoud:

5.2 Faktor:

5.3 Priemgetal:

5.4 Priemfaktor:

5.5 Ewe getalle en onewe getalle:

  • Hoe bepaal jy die faktore van ‘n getal? Kyk ‘n bietjie.....bv. F 24 = {1; 2; 3; 4; 6; 8; 12; 24} 1 x 24; 2 x 12; 3 x 8; 4 x 6

6. Bepaal die faktore van 48.

7. Skryf al die veelvoude van 6 tussen 23 en 56 neer.

8. Bepaal die priemgetalle tussen 17 en 78.

9 Bepaal alle onewe saamgestelde getalle tussen 16 en 50.

10 Skryf al die faktore van 50, wat priemgetalle is, neer.

11. Skryf al die faktore van 50, wat saamgestelde getalle is, neer.

12. Verklaar: Kubusgetalle. Skryf die eerste ses kubusgetalle neer.

13. Verklaar: Vierkantgetalle. Skryf die eerste tien vierkantgetalle neer.

HUISWERKOPDRAG

1. Gee die definisie van elk van die volgende:

1.1 Rasionale getal:

1.2 Priemgetal:

1.3 Saamgestelde getalle:

1.4 Priemfaktore:

2. Kies uit {0; 1; 2; 3; 4; ... ; 36} en skryf neer:

2.1 Eerste twee saamgestelde getalle

2.2 Onewe getalle wat nie priemgetalle is nie

2.3 Veelvoude van 6

2.4 Faktore van 12

2.5 Priemfaktore van 12

2.6 Faktore van 36

3. Watter van die volgende getalle - 9 / 3 ; 7 / 0 ; 0; 3; -9; 16; 2 1 / 3 is:

3.1 Telgetalle?

3.2 Rasionale getalle?

3.3 Nie-reële getalle?

4. Tabelleer die volgende:

4.1 Natuurlike getalle<5 ...........................................................................

4.2 Priemgetalle<10 ...........................................................................

Questions & Answers

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Sahrukh Reply
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Anthvanath Reply
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Rodrick Reply
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Rodrick
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Sahrukh
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Sahrukh
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208
Rani
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A baby's body has about 300 bones at birth. These eventually fuse (grow together) to form the 206 bones that adults h
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Manali
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Rani
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Jasper
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Rani Reply
front view of male reproductive system
Rani
front view of male reproductive system
Rani
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Rhonda Reply
Actin is a family of globular multi-functional proteins that form microfilaments. 
Lauren
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Lone
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Silver Reply
An antiserum contains antibodies already produced and is used to pass on immune responses. A vaccine contains a substance that stimulates the production of antibodies to create an immune response.
Nana
A vaccine a preparation of antigens for one (or more) diseases that is given to stimulate active immunity and protect against the disease (s). while an antiserum either neutralizes the "infection " or stimulates your immune system to attack an infection.
Oliver
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Carlene Reply
A negatively charged molecule; polymer of nucleotides found in the nucleus of a cell ... DNA.
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Asali
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Janelle
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Oliver
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Jasper
DNA is genetic material which is present in cell DNA is made up of nitrogen base,phosphate group and pentose sugar.
Manali
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Rani
to maintain certain biological activities of cell
jeeni Reply
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caused by two different agents.. malaria is caused by Culex mosquito in birds and Anopheles in humans.. while dengue fever is caused by Aedes mosquito
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Rani
pili is hair like appendages found on cell surface and play important role in cause disease
Manali
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Jasper
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Shaili Reply
system that defends the body against invading microbes n pathogens... (white blood cells makes immune system)
Rayyan
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maya Reply
interferon is any group of glycoproteins, produce by the immune system.
Henry
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Shaili
immune system is the defence mechanism that protect our body to unwanted particles
Manali
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Henry Reply
human biology is the studying of stucture and of function of the body and the principles of how humans interacts with men, animal and plants around them and the social activities that take place.
Kay-Anna
human biology is the studying of human body structures function in the way of interacting physical and internal. while biology is the study of living and non living things.
shanta
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Source:  OpenStax, Wiskunde graad 8. OpenStax CNX. Sep 11, 2009 Download for free at http://cnx.org/content/col11033/1.1
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