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Wiskunde

Getalbegrip, optelling en aftrekking

Aftrekking

Opvoeders afdeling

Memorandum

Eie opinie

TOETS TOTAAL: 20

1. (a) Verskil

(b) Optelling

(c) Aftrektal

2. (a) 105; 70;

(b) 480; 360;

4. 46 – 000 – 23 000 = 23 000

5. 1 450

6. 23 600 + 400 = 24 000

24 000 + 32 123 = 56 123

32 123 + 400 + 31 = 32 554

7.

8. R500 000 – R13 401

R486 599

Leerders afdeling

Inhoud

Aktiwiteit: om probleme in konteks op te los [lu 1.6]

UITDAGING

Hierdie is ‘n taak vir jou portefeulje. Jou opvoeder sal dit met jou deurgaan en vir jou verduidelik presies wat van jou verwag word. Maak seker dat jy goed verstaan voordat jy begin. Onthou om netjies te werk.

  • Uitdaging!

Jy het ‘n kompetisie gewen en is ’n miljoen rand ryker! Jy mag egter net items / artikels uit jou plaaslike koerant daarmee koop. Knip dit wat jy sal koop uit, en plak dit in die blok hieronder (met die pryse). Dui aan hoeveel geld jy sal oorhou. Vra ’n maat om jou berekeninge te kontroleer.

ASSESSERING

1 2 3 4
Netheid en organisasie Werk is slordig en ongeorganiseerd Georganiseerd, maar moeilik leesbaar Netjies en georganiseerd, maklik leesbaar Netjiese, duidelik uiteengesette werk; duidelik leesbaar
Logiese redenering Baie min bewyse van logika Bietjie logika kom na vore Gebruik effektiewe wiskundige redenering Gebruik verfynde logika en redenasie
Korrektheid van berekenings Antwoord is verkeerd bereken (items uitgelaat) Enkele foute is begaan Voldoende begrip, maar aftrekfout begaan Antwoord korrek bereken

Toets

1. Skryf die korrekte antwoorde neer:

1.1 Die antwoord van ‘n minus-som word die ______________________ genoem

1.2 Die inverse van aftrekking is _______________________

1.3 In die som 5 676 – 231 = 5 445 word 5 676 die ______________ genoem (3)

2. Voltooi die volgende getallepatrone:

2.1 175 ; 140 ; 105; _______________________; 35

2.2 _______________________; _______________________; 240 ; 120 (2)

3. Voltooi die volgende vloeidiagram:

(2)

4. Bereken die verskil deur beide getalle af te rond tot die naaste 1 000:

4.1 45 679 – 23 499

__________________________________________________________________ (3)

5. Voltooi:

6 775 – 1 448 = 6 777 - ______________________________________________ (1)

6. Seko moes die volgende bereken: 56 123 – 23 569. Hy het so begin:

  • Voltooi die som.

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_______________________________________________________________ (3)

7. Nomsa het vergeet om haar som te voltooi. Doen dit vir haar:

(4)

8. Mnr. Muruvan het R500 000 gehad. Nadat hy ‘n huis kontant gekoop het, het hy R13 401 oorgehad. Wat het sy huis gekos?

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_______________________________________________________________ (4)

TOTAAL: 20

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 1.6: Dit is duidelik wanneer die leerder probleme in konteks oplos, insluitend kontekste wat gebruik kan word om ‘n bewustheid van ander leerareas, asook van menseregte-, sosiale, ekonomiese en omgewingskwessies, te bevorder:

1.6.1 finansiële kontekste (insluitend koop en verkoop, wins en verlies, en eenvoudige begrotings).

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
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
hey
Giriraj
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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