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Summary Wiskunde Kwartaal 1 Graad 7 (Kollig Op-handboek)
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Kwartaal 1 ....................................................................................................................................... 2
Module 1 : Telgetalle .................................................................................................................... 2
Module 2 : Eksponente ................................................................................................................. 2
Module 3 : Konstruksies ............................................................................................................... 4
Module 4 : Meetkunde van 2D vorms ........................................................................................... 9
1
, Kwartaal 1
MODULE 1 : TELGETALLE
Inverse bewerkings
• Vermenigvuldiging en deling is inverse bewerkings.
• Vermenigvuldiging en deling kan gebruik word om mekaar te kontroleer.
• Ons kan die groeperingseienskap van vermenigvuldiging en deling gebruik.
• Dit beteken as ons met ’n veelvoud van 10 wil vermenigvuldig, kan ons eers met die veelvoud
vermenigvuldig en dan met 10.
Byvoorbeeld
• 60 = 6 × 10
• 600 = 6 × 100
• 6 000 = 6 × 1 000
• 60 000 = 6 × 10 000
Voorbeeld 1 Voorbeeld 2 Voorbeeld 3
Vereenvoudig 4 × 600 Vereenvoudig 63 × 20 Vereenvoudig 36 × 90
Oplossing Oplossing Oplossing
4 × (6 × 100) 63 × (2 × 10) 36 × (9 × 10)
= (4 × 6) × 100 = (63 × 2) × 10 = (36 × 9) × 10
= 2 400 = 1 260 = 3 240
Voorstelling van telgetalle
• Kyk na hierdie groot getal : 327 461 856 (bestaan uit 9 syfers).
Voorbeeld van ‘n plekwaardekolomme
Miljoene Duisende Honderde
HM TM M HD TD D H T E
3 2 7 4 6 1 8 5 8
Voorbeeld 1 Voorbeeld 2 Voorbeeld 3
In Suid-Afrika is daar Skryf in uitgebreide Wat is die waarde van
nege-en-twintig notasie : 572 863 die onderstreepte
miljoen seshonderd syfer : 64 897
vyf-en-veertig duisend Oplossing
sewehonderd en 500 000 + 70 000 + Oplossing
negentig mense wat 2 000 + 800 + 60 + 3 60 000
selfone gebruik.
Skryf hierdie getal met
gebruik van syfers.
Oplossing
29 645 790
2
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