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• GETIntPhaseMaths

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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Course by: Siyavula Uploaders. E-mail the author

# Om tegnieke te gebruik om berekenings te doen

Module by: Siyavula Uploaders. E-mail the author

## 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

## 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.

 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

##### Lenses

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.

##### What is in a lens?

Lens makers point to materials (modules and collections), creating a guide that includes their own comments and descriptive tags about the content.

##### Who can create a lens?

Any individual member, a community, or a respected organization.

##### What are tags?

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#### Definition of a lens

##### Lenses

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.

##### What is in a lens?

Lens makers point to materials (modules and collections), creating a guide that includes their own comments and descriptive tags about the content.

##### Who can create a lens?

Any individual member, a community, or a respected organization.

##### What are tags?

Tags are descriptors added by lens makers to help label content, attaching a vocabulary that is meaningful in the context of the lens.

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