SISTEMA DE NUMERAÇÃO EGÍPCIO | 6°ANO - AULA 02 - Vídeo Dailymotion

Canal de Matemática X-Math

Os egípcios não se preocupavam com a ordem dos símbolos, o que para a atualidade é imprescindível. Esse sistema de numeração servia para efetuar cálculos que envolviam números inteiros. A técnica era efetuar todas as operações matemáticas através de uma adição.  Aprenda a contar como os Egípcios contavam, sistema de numeração egípcio.  O sistema de numeração egípcio baseava-se em sete números chave: 1, 10, 100, 1.000, 10.000, 100.000 e 1.000.000, um traço vertical representava 1 unidade, um osso de calcanhar invertido representava o número 10, um laço valia 100 unidades, uma flor de lótus valia 1.000, um dedo dobrado valia 10.000, um girino representava 100.000 unidades, uma figura ajoelhada, talvez representando um deus valia 1.000.000.  Playlist de Matemática   Aulas 6ºAno Ensino fundamental : https://www.youtube.com/playlist?list=PLFlCwSIwsd31bDyon7amEyHeWg2Hs28Nq Lista de exercício 6ºAno Ensino fundamental: https://www.youtube.com/playlist?list=PLFlCwSIwsd33jIwxPKXSq_wO7M98upk4o  Aulas 7ºAno Ensino Fundamental: https://www.youtube.com/playlist?list=PLFlCwSIwsd32-vbcIwTPbfdsxMxfpWEX_ Lista de exercício 7ºAno Ensino fundamental: https://www.youtube.com/playlist?list=PLFlCwSIwsd33XVZRziy1wV91vXbAw-oCs  Ensino fundamental: https://www.youtube.com/playlist?list=PLFlCwSIwsd326vxab4XHX9g9JgvVLc6jY Matemática Básica: https://www.youtube.com/playlist?list=PLFlCwSIwsd30RdJv4mnFB9vWQV0FOoaqn  Exercícios: https://www.youtube.com/playlist?list=PLFlCwSIwsd32TrTLfpz1_5qrtuuP8g3rT Integral: Exercícios Resolvidos | 1° Lista: https://www.youtube.com/playlist?list=PLFlCwSIwsd31Qb89Nd9T7UnEQPNNEIrsO Matemática do Dia a Dia: https://www.youtube.com/playlist?list=PLFlCwSIwsd31lGr5a_kh61bLUHmPggLTk  Em nosso site você encontra todas as aulas de matemática organizada por ano e conteúdo https://www.xmath.com.br/  Seja membro deste canal e ganhe benefícios: https://www.youtube.com/channel/UCWmuhQKn8r7ov81ZkSs5PeQ/join

Transcript

00:00Numbering system

00:04A number system is a set of symbols and rules that allows us to write and read any number from a given set.

00:16The history of humanity shows us the existence of many numbering systems created by different peoples.

00:24The Egyptians, Babylonians, Chinese, Mayans, Romans, Hindus and others.

00:31These ancient civilizations lived many, many years ago.

00:36For example, on the map we're going to show you now, you'll see the civilizations and their period of greatest development.

00:47Egyptian numbering system

00:49The Egyptians created one of the first numbering systems.

00:55Let's look at the symbols they used to represent quantities.

00:59Number 1 is a vertical rod.

01:03The 10 is the heel bone.

01:07The 100 is a coiled rope.

01:10The 1000 is a lotus flower.

01:12The 10 thousand is an index finger.

01:15If you're on your phone with an index finger, subscribe to the channel and activate the bell to follow all the classes.

01:22The 100,000 is a bird, fish or a tadpole.

01:26The 1 million is a man kneeling with his arms raised.

01:30Probably thanking you, because it's 1 million.

01:33But let's go.

01:34With them, it was possible to write numbers using the following rules.

01:41Each symbol could be repeated a maximum of 9 times.

01:47Every 10 repeated symbols were exchanged for another from a higher argument.

01:55The values of the symbols used were added to find the represented value.

02:01For example, if I used the number 1 9 times, I would have the number 9.

02:08But if I use the number 1 10 times, I would have the number 10.

02:14So I would replace all of these rods that represent 1 with the symbol now that represents the number 10.

02:22And so the Egyptians developed their counting.

02:27For example, 40 plus 9.

02:32Here we have 4 symbols of the number 10 and 9 symbols of the number 1.

02:382 thousand plus 20.

02:41Here we have 2 1000 symbols with 2 10 symbols.

02:49100 plus 20 plus 7.

02:52Here we have the symbol that represents 100.

02:562 symbols of 10, which is equal to 20.

03:00And 7 symbols of 1, which represents 7.

03:05Oh, there's another detail too.

03:07The position of the symbols does not change the written number.

03:10For example, the number 13 can be written in both ways.

03:16Starting with the 10 symbol and 3 1 symbols.

03:24Or starting with the 3 symbols 1 and the symbol 10, which represents 13.

03:29So, guys, this class will end here.

03:33So, did you like it?

03:34Go to the comments.

03:35Let's talk about math?

03:38And take advantage and subscribe to the channel and click the bell so you don't miss any classes.

03:42And let's embark on this journey of mathematical knowledge with the X-Men.

03:46See you next class.

SISTEMA DE NUMERAÇÃO EGÍPCIO | 6°ANO - AULA 02

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