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Wiskunde

Getalbegrip, optelling en aftrekking

Getalbegrip

Opvoeders afdeling

Memorandum

1.1 5

1.2 3

1.3 8

1.4 6

2.1 (39 x 27) + 496 1 549

2.2 (23 x 18) + 852 – 256 1 010

2.3 (67 + 48); 7 705 ÷ antwoord 67

2.4 3 600 ÷ 30; 82 x 10; antwoord + antwoord 940

2.5 2 934 – 816 + 905 – 205 2 818

2. Verskeie oplossings is moontlik. Daar word nie gesê dat elke syfer net een keer gebruik mag word nie.

TOETS 1

  • 13 800; 13 750
  • 24 360; 24 375

2. 300 000 + 60 000 + 8 000 + 400 + 20 + 9

  • <
  • =
  • 20 500
  • 358 490

5. ses miljoen aghonderd drie en twintigduisend vierhonderd en sewentien

6.1 1296

6.2 6

  • 40 000
  • 6 miljoen
  • 37 000
  • 149 000
  • 48; 56; 64; 72
  • 1; 2; 3; 4; 5; 6; 8; 12; 24
  • 11; 13; 17; 19

10.1 waar

  • vals
  • vals
  • 114
  • 34
  • 70

11.4 6

Leerders afdeling

Inhoud

Aktiwiteit: om te bereken deur bewerkings te kies wat geskik is om probleme op te los [lu 1.8.10]

Dit is van kardinale belang dat jy die volgende deeglik sal begryp en goed sal onthou, anders sal jy eenvoudige (en moeiliker) bewerkings nie korrek kan uitvoer nie, en dus ‘n verkeerde antwoord kry!

VOLGORDE VAN BEWERKINGS

LET OP EN LEER DIE VOLGENDE:

Die volgorde van bewerkings is:

1. Hakies

2. Van

3. Deling

4. Vermenigvuldiging

5. Optelling

6. Aftrekking

Die volgende reëls geld ook:

1. Wanneer die bewerkings dieselfde is, bv. 6 + 3 + 9 + 5 : werk van LINKS NA REGS

2. Wanneer daar slegs + en − is, bv. 6 − 3 + 2 − 4 + 9: werk van LINKS NA REGS

Dus: 6 − 3 → 3 + 2 → 5 − 4 → 1 + 9 = 10

3. Wanneer daar slegs × en is, bv. 2 × 24  4 × 10  5: werk van LINKS NA REGS

Dus: 2 × 24 → 48  4 → 12 × 10 → 120  5 = 24

1. Kyk nou of jy die voorafgaande korrek kan toepas. Werk saam met ’n maat en bereken die volgende :

1.1 f = 9 + 6 x 2 − 7 _____________________________________________

1.2 c = 7 − (18 + 2) x 5___________________________________________

1.3 k = 23 − 16 + 4 − 3___________________________________________

1.4 e = 36 x 12 x 4 x 2____________________________________________

Nou mag jy ‘n sakrekenaar gebruik, maar dit sal jou niks help, indien jy nie die volgorde van bewerkings ken nie. Blaai dus terug en kyk weer, indien jy twyfel. Kyk of jy die volgende tabel korrek kan voltooi:

Berekening Sleutelvolgorde Antwoord
Bv. 15 + 6 × 2 (6 × 2) + 15 27
2.1 496 + 39 × 27
2.2 852 + (23 × 18) − 256
2.3 7 705  (67 + 48)
2.4 3 600  30 + 82 × 10
2.5 2 934 − 816 + 905 − 205

Tyd vir portuur-assessering!

Hoe goed is jy vertroud met die laaste gedeelte van die werk wat ons afgehandel het?

Werk saam met ’n maat en verduidelik die volgende vir hom/haar. Hy/sy sal jou dan assesseer deur ‘n sirkel om die toepaslike kode te trek;

Heelte-mal onseker Bietjie seker Redelik seker Dood-seker
Ek kan verduidelik wat veelvoude is. (LU 1.3) 1 2 3 4
Ek kan verduidelik wat faktore is. (LU 1.3) 1 2 3 4
Ek kan verduidelik wat priemgetalle is. (LU 1.3) 1 2 3 4
Ek kan die konstante funksie op my sakrekenaar gebruik om veelvoude te bepaal. (LU 1.8) 1 2 3 4
Ek kan verduidelik wat ’n palindroom is. (LU 1.3) 1 2 3 4
Ek kan die eienskappe van 0 en 1 aan my maat verduidelik. (LU 1.3) 1 2 3 4
Ek ken die volgorde van bewerkings en kan dit korrek toepas. (LU 1.8) 1 2 3 4

Kopkrappers!

1. Plaas die getalle 1 tot 9 in die diagram sodat al die getalsinne waar is.

2. Plaas van die getalle 1 tot 12 in die diagram sodat die som van minstens 4 van die sye gelyk is.

Toets 1

1. Voltooi die volgende getallepatrone:

1.1 13 850 ; ________________ ; ________________ ; 13 700 ; 13 650

1.2 24 330 ; 24 345 ; ________________ ; ________________

(4)

2. Skryf in uitgebreide notasie:

2.1 368 429 = ____________ + ____________ + ___________ + ___________ +

____________ + ____________

(2)

3. Vul in:<;>of = :

3.1 489 653 * 498 653____________

3.2 10 x 10 x 10 x 10 * 100 000 x 10____________

(2)

4. Watter getal is:

4.1 350 meer as 20 150? ________________________

4.2 10 000 minder as 368 490? ______________________

(2)

5. Skryf in woorde:

6 832 419

(2)

6. Voltooi:

6.1 64 = ____________________________________

6.2 een miljoen = 1 x 10¨______________________

(2)

7. Wat is die waarde van die vetgedrukte syfer?

7.1 1 4 7 689________________________________________

7.2 6 823 417_______________________________________

(2)

8. Rond af tot die naaste 1 000:

8.1 36 842________________________________________

8.2 149 099________________________________________

(2)

9. Skryf neer:

9.1 die veelvoude van 8 tussen 40 en 80

_____________________________________________________________________

9.2 die faktore van 24

_____________________________________________________________________

9.3 die priemgetalle tussen 10 en 20

___________________________________________________________________ (6)

10. Waar of Onwaar?

10.1 42 624 is ’n palindroom _____________________________

10.2 1 is ’n priemgetal ________________________________

10.3 36 x 0 = 0________________________________________

(3)

11. Bereken:

11.1 90 + 6 x 12 x 3__________________________________

11.2 36 − (5 x 4) x 10_________________________________

11.3 80 − 6 + 4 − 13 + 5_____________________________

11.4 8 x 5 x 8 x 6 x 5_________________________________

(8)

Ek het _______________________________ uit 35 !!

Kleur in: Ek voel

BAIE TEVREDE
GELUKKIG
BEKOMMERD
EK IS TOT BETER IN STAAT

Assessering

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:

1.8.10: eenvoudige bewerkings met heelgetalle met of sonder hakies.

Questions & Answers

how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
what is inflammation
Shelly Reply
part of a tissue or an organ being wounded or bruised.
Wilfred
what term is used to name and classify microorganisms?
Micheal Reply
Binomial nomenclature
adeolu
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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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