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  • GETIntPhaseMaths display tagshide tags

    This module and collection are included inLens: Siyavula: Mathematics (Gr. 4-6)
    By: Siyavula

    Module Review Status: In Review
    Collection Review Status: In Review

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Om tegnieke te gebruik om berekenings te doen

Module by: Siyavula Uploaders. E-mail the author

WISKUNDE

Getalbegrip, Optelling en Aftrekking

Optelling

OPVOEDERS AFDELING

Memorandum

2. 1.3 1 236

3.1 10 876 + 23 982 M+

43 567 + 21 309 M+

RM = 130 254

3.2 42 861 + 13 579 M+

49 478 + 24 336 M+

RM = 130 254

4. 2 x 17.99 M+

3 x 14.99 M+

2 x 6.98 M+

2 x 16.99 M+

RM = 128.89

LEERDERS AFDELING

Inhoud

AKTIWITEIT: Om tegnieke te gebruik om berekenings te doen [LU 1.10]

HET JY GEWEET?

Jy kan jou sakrekenaar se geheue-sleutels gebruik om berekeninge waarin meer as een bewerking voorkom, korrek te doen.

1. Soek die volgende sleutels op jou sakrekenaar: M+ ; MR of RCM

2. Kyk nou goed na die voorbeeld:

(168 + 423) + (256 + 389)

2.1 Druk 168 + 423 = M+

2.2 Druk dan 256 + 389 = M+

2.3 Druk dan MR of RCM

Wat is die antwoord?

LET OP:

Die M+-sleutel stel die sakrekenaar in staat om die antwoord te bêre of te memoriseer.

Die MR (Memory Recall) of RCM (ReCall Memory) –sleutel word gedruk as jy al die gememoriseerde antwoorde wil oproep.

3. Gebruik nou jou sakrekenaar se geheue en bereken:

3.1 (10 876 + 23 982) + (43 567 + 21 309)

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3.2 (42 861 + 13 579) + (49 478 + 24 336)

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4. Kyk nou na die betaalstrokie van die “Bly Gesond” apteek. Gebruik jou sakrekenaar se geheue om die totaal van jou inkopies te bereken.

Table 1
     
BLY GESOND APTEEK
       
Tel. 919-2561Faks. 919-2562     Kortstraat 3 Bellville7530
       
  Item Getal Prys Bedrag  
       
Vitamine tablette 2 R17,99  
Tandeborsel 3 R14,99  
Sneesdoekies 2 R 6,98  
Sjampoe 2 R16,99  
       

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Assessment

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 1.10: Dit is duidelik wanneer die leerder ‘n verskeidenheid tegnieke gebruik om sowel skriftelike as hoofberekeninge met heelgetalle te doen, insluitend:

1.10.1 optelling en aftrekking in kolomme.

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Definition of a lens

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A lens is a custom view of the content in the repository. You can think of it as a fancy kind of list that will let you see content through the eyes of organizations and people you trust.

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