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Wiskunde

Getalbegrip, optelling en aftrekking

Getalbegrip

Opvoeders afdeling

2. Leerder se eie metode

3.1 9 080 717

3.2 8 301 883

  • 6 485 185

Kopkrapper

1. 4 2. 1

3 2

1 3

2 3

1 44

8 1

Leerders afdeling

Inhoud

Aktiwiteit: om die gelykwaardigheid en geldigheid van verskillende voorstellings te bepaal [lu 2.6.3]

Om strategieë te gebruik om oplossings te kontroleer [lu 1.11]

1. In die vorige aktiwiteit het jul die geleentheid gehad om jul eie strategieë en tegnieke te gebruik om die probleme op te los. Uit jul terugvoering aan die klas het julle seker besef dat daar talle maniere is waarop ons getalle bymekaar kan tel.

Werk nou in pare. Bespreek die volgende metodes en verduidelik aan mekaar hoe die antwoord bereken is:

Kom ons hersien

1.1 845 908 + 25 876 + 343 621

800 000 + 40 000 + 5 000 + 900 + 0 + 8
________ 20 000 + 5 000 + 800 + 70 + 6
+ 300 000 + 40 000 + 3 000 + 600 + 20 + 1
1 100 000 + 100 000 + 13 000 + 2 300 + 90 + 15

= 1 000 000 + (100 000 + 100 000) + 10 000 + (3 000 + 5 000) + 300 + (90 + 10) + 5

= 1 215 405

1.2

= 1 215 405

1.3

1 1 1 2 1
8 4 5 9 0 8
2 5 8 7 6
+ 3 4 3 6 2 1
1 2 1 5 4 0 5

2. Kan jy hierdie som op enige ander metode vir jou maat doen?

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3. Gebruik enige metode van jou keuse (sonder ’n sakrekenaar) en bereken die som van:

3.1 4 623 577 + 1 239 246 + 3 217 894

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3.2 2 851 416 + 4 981 235 + 469 232

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3.3 2 153 892 + 264 058 + 4 067 235

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Kopkrappers!

Vul die ontbrekende syfers in:

1.

1. 2 1 3 4 1 ___ 2. ___ 7 9 1 2 3
8 9 2 ___ 7 4 ___ 2 8 1 6
1 7 5 ___ 9 2 1 1 ___ 2 3 3
___ 1 4 1 1 9 1 0 0 ___ 7 1
+ 1 ___ 9 1 2 3 + 1 4 3 0 ___ ___
___ 1 ___ 0 8 5 9 5 8 5 8 7

Tyd vir selfassessering

  • Maak ’n regmerkie in die toepaslike blokkie:
Ja Meestal Soms Nee
Ek kan optelmetodes ondersoek en evalueer (bepaal of dit korrek is). (LU 1.11 en LU 2.6) *
Ek kan korrek optel sonder ’n sakrekenaar. (LU 1.8) *
Ek het nog oefening in optelling nodig. *

* Vra jou opvoeder om weer te verduidelik en vir jou ekstra oefeninge te gee.

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 1.11: 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.

Assessment Standard 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 getalsinne.

Questions & Answers

what is phylogeny
Odigie Reply
evolutionary history and relationship of an organism or group of organisms
AI-Robot
ok
Deng
what is biology
Hajah Reply
the study of living organisms and their interactions with one another and their environments
AI-Robot
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Victoria Reply
HOW CAN MAN ORGAN FUNCTION
Alfred Reply
the diagram of the digestive system
Assiatu Reply
allimentary cannel
Ogenrwot
How does twins formed
William Reply
They formed in two ways first when one sperm and one egg are splited by mitosis or two sperm and two eggs join together
Oluwatobi
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Josephine Reply
Genetics is the study of heredity
Misack
how does twins formed?
Misack
What is manual
Hassan Reply
discuss biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles
Joseph Reply
what is biology
Yousuf Reply
the study of living organisms and their interactions with one another and their environment.
Wine
discuss the biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles in an essay form
Joseph Reply
what is the blood cells
Shaker Reply
list any five characteristics of the blood cells
Shaker
lack electricity and its more savely than electronic microscope because its naturally by using of light
Abdullahi Reply
advantage of electronic microscope is easily and clearly while disadvantage is dangerous because its electronic. advantage of light microscope is savely and naturally by sun while disadvantage is not easily,means its not sharp and not clear
Abdullahi
cell theory state that every organisms composed of one or more cell,cell is the basic unit of life
Abdullahi
is like gone fail us
DENG
cells is the basic structure and functions of all living things
Ramadan
What is classification
ISCONT Reply
is organisms that are similar into groups called tara
Yamosa
in what situation (s) would be the use of a scanning electron microscope be ideal and why?
Kenna Reply
A scanning electron microscope (SEM) is ideal for situations requiring high-resolution imaging of surfaces. It is commonly used in materials science, biology, and geology to examine the topography and composition of samples at a nanoscale level. SEM is particularly useful for studying fine details,
Hilary
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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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