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Wiskunde

Graad 5

Vermenigvuldiging en deling

Module 31

Deling

Aktiwiteit 1:

Om hoofrekene te kan doen

[lu 1.10]

  1. Jy weet reeds hoe belangrik dit is om hoofreken te kan doen. Jy weet ook reeds hoe belangrik dit is om jou tafels te ken! In hierdie eenheid sal dit jou baie help om deling korrek te kan doen. Kom ons spring aan die werk. Hou jy ook van droë wors? Werk saam met ’n maat. Kyk goed na die “worsmasjiene”. Die een wat die antwoorde die gouste kan sê, maak die vinnigste wors!

Wie het gewen?

2. Werk nou op jou eie en kleur in volgens die kode: 4 = donkergrys ; 5 = pienk ; 6 = lig-grys ; 7 = swart ; 9 = rooi

3. Voltooi die tabelle:

34
3.1 Gedeel deur 3 4 5 6 7 8 9
Res 1 ............ ............ ............ ............ ............ ............
61
3.2 Gedeel deur 2 5 6 7 8 9 10
Res 1 ............ ............ ............ ............ ............ ............

4. Kom ons kyk nou eers hoe jy in die volgende hoofrekentoets vaar. Voltooi dit so vinnig en akkuraat as wat jy kan.

4.1 35 – 5 – 5 – 5 = ............ 4.11 108 – 12 – 12 – 12 = ............
4.2 64 – 8 – 8 = ............ 4.12 72 – 9 – 9 = ............
4.3 42 ÷ 7 = ............ 4.13 Halveer: 612: ............
4.4 54 ÷ 6 = ............ 4.14 Halveer: 487: ............
4.5 ............ ÷ 7 = 8 4.15 Halveer: 1 036: ............
4.6 ............ ÷ 12 = 6 4.16 ............ ÷ 9 = 4
4.7 28 ÷ 4 = ............ 4.17 ............ ÷ 8 = 6
4.8 280 ÷ 4 = ............ 4.18 60 ÷ ............ = 5
4.9 280 ÷ 40 = ............ 4.19 36 ÷ ............ = 4
4.10 2 800 ÷ 40 = ............ 4.20 3 600 ÷ 90 = ............

Het jy geweet??

Deling is die omgekeerde van vermenigvuldiging. Ons noem deling die inverse van vermenigvuldiging.

Dus: 5 × 3 = 1515 ÷ 3 = 5 en15 ÷ 5 = 3

Ek vermenigvuldig dus as ek ’n deelsom wil toets en andersom.

Aktiwiteit 2:

Om die resiprookverhouding tussen vermenigvuldiging en deling te herken, te beskryf en te gebruik [lu 1.12.1]

1. Gebruik nou jou kennis van “inverse” en voltooi die volgende:

1.1 As 26 × 17 = 442, dan is 442 ÷ 17 = ................ en 442 ÷ ................ = 17

  • As 24 × 30 = 720, dan is 720 ÷ ................ = 24 en 720 ÷ 24 = ................

Het jy ook geweet?

Wanneer ons deel, doen ons die volgende:

HERHAALDE AFTREKKING

12 ÷ 3 = 12 – 3 – 3 – 3 – 3 = 4

GROEPERING

12 ÷ 3: Ons moet 12 in 3 gelyke dele indeel

VERDELING

12 ÷ 3: Ons moet 12 gelykop tussen 3 verdeel

123

Aktiwiteit 3:

Om getalle te herken en voor te stel om hulle te beskryf en te vergelyk [lu 1.3]

1. Kom ons hersien. Kan jy nog onthou wat gebeur wanneer ons enige getal deur 1 deel? Werk saam met ’n maat en vind die antwoorde van die volgende:

1.1 5 ÷ 1 = .................................. 1.2 86 ÷ 1 = ............................

1.3 359 ÷ 1 = .............................. 1.4 4 625 ÷ 1 = .......................

1.5 32 174 ÷ 1 = .........................

2. Kan julle ’n reël vir deling deur 1 neerskryf?

KOPKRAPPER!

As 5 ÷ 1 = 5 en 86 ÷ 1 = 86, dan is:

1 ÷ 5 = .........................

1 ÷ 86 = .........................

1 ÷ 359 = .........................

1 ÷ 4 625 = .........................

As 1 die deeltal is, is die antwoord dus altyd ’n ..................................................

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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