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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

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 5. OpenStax CNX. Sep 07, 2009 Download for free at http://cnx.org/content/col10993/1.1
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