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Dicas para Cálculos Rápidos vol. 2

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Dicas para Cálculos Rápidos vol. 2. Calcula mais rápido e ganha tempo na hora de provas!

Veja também a primeiro aula de cálculos rapidos.

Publicada em: Engenharia
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  • DOWNLOAD THE BOOK INTO AVAILABLE FORMAT (New Update) ......................................................................................................................... ......................................................................................................................... Download Full PDF EBOOK here { https://urlzs.com/UABbn } ......................................................................................................................... Download Full EPUB Ebook here { https://urlzs.com/UABbn } ......................................................................................................................... Download Full doc Ebook here { https://urlzs.com/UABbn } ......................................................................................................................... Download PDF EBOOK here { https://urlzs.com/UABbn } ......................................................................................................................... Download EPUB Ebook here { https://urlzs.com/UABbn } ......................................................................................................................... Download doc Ebook here { https://urlzs.com/UABbn } ......................................................................................................................... ......................................................................................................................... ................................................................................................................................... eBook is an electronic version of a traditional print book THE can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer THE is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the user's computer or reading device. Generally, an eBook can be downloaded in five minutes or less ......................................................................................................................... .............. Browse by Genre Available eBOOK .............................................................................................................................. Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, CookBOOK, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult, Crime, EBOOK, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, ......................................................................................................................... ......................................................................................................................... .....BEST SELLER FOR EBOOK RECOMMEND............................................................. ......................................................................................................................... Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth,-- The Ride of a Lifetime: Lessons Learned from 15 Years as CEO of the Walt Disney Company,-- Call Sign Chaos: Learning to Lead,-- StrengthsFinder 2.0,-- Stillness Is the Key,-- She Said: Breaking the Sexual Harassment Story THE Helped Ignite a Movement,-- Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones,-- Everything Is Figureoutable,-- What It Takes: Lessons in the Pursuit of Excellence,-- Rich Dad Poor Dad: What the Rich Teach Their Kids About Money THE the Poor and Middle Class Do Not!,-- The Total Money Makeover: Classic Edition: A Proven Plan for Financial Fitness,-- Shut Up and Listen!: Hard Business Truths THE Will Help You Succeed, ......................................................................................................................... .........................................................................................................................
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Dicas para Cálculos Rápidos vol. 2

  1. 1. SÉRIE DE DICAS P/ CÁLCULOS MAIS RÁPIDOS Prof. Arthur Lima Prof. Arthur Lima www.estrategiaconcursos.com.br 4 DICAS PARA CÁLCULOS MAIS RÁPIDOS – ARTIGO 02 Este é o 2º artigo da nossa série de dicas para facilitar / agilizar os cálculos matemáticos envolvidos em questões de Raciocínio Lógico, Matemática, Matemática Financeira ou Estatística. Vamos trabalhar um pouco? DICA 04 – dividir um número por 0,25 É interessante observar que: 1 0,25 4 = Portanto, se queremos dividir 56 por 0,25, podemos fazer: 56 0,25 = 56 1 4 = 4 56 1 × = 56 4× = 224 Assim, repare que dividir por 0,25 é o mesmo que multiplicar por 4. Fácil, não? Sabendo desta regra, podemos efetuar rapidamente esta divisão: 190 0,25 = 190 4× = 760 DICA 05 – multiplicar um número por 0,25 Aqui devemos lembrar novamente que: 1 0,25 4 = Portanto, se queremos multiplicar 56 por 0,25, podemos fazer:
  2. 2. SÉRIE DE DICAS P/ CÁLCULOS MAIS RÁPIDOS Prof. Arthur Lima Prof. Arthur Lima www.estrategiaconcursos.com.br 5 56 0,25× = 1 56 4 × = 56 4 = 14 Assim, repare que multiplicar por 0,25 é o mesmo que dividir por 4. Veja mais um exemplo: 190 0,25× = 190 4 = 47,5 Neste último caso, observe que dividir 190 por 4 não é tão rápido assim... Para isso, temos a nossa próxima dica! DICA 06 – dividir um número por 4 Aqui a dica é bem simples. Lembre-se que: 4 = 2 x 2 Portanto, ao invés de dividir um número por 4, você pode dividi-lo por 2 e em seguida dividir por 2 novamente. Se quisermos dividir 190 por 4, podemos fazer: 190 4 = 190 2 2 = × 95 2 = 47,5 Em um segundo exemplo, vamos dividir 175 por 4, agora mais rapidamente: 175 87,5 2 =
  3. 3. SÉRIE DE DICAS P/ CÁLCULOS MAIS RÁPIDOS Prof. Arthur Lima Prof. Arthur Lima www.estrategiaconcursos.com.br 6 87,5 43,75 2 = ATENÇÃO: Veja que você pode extrapolar as dicas vistas neste artigo para outros casos! Por exemplo, 40 = 2 x 2 x 10 Assim, ao invés de dividir um número por 40, você pode começar dividindo-o por 2, depois dividir novamente por 2, e então dividir por 10. Exemplificando, vamos dividir 192 por 40: 192 96 2 = 96 48 2 = 48 4,8 10 = Logo, 192 4,8 40 = Veja ainda que: 1 1 0,025 40 4 10 = = × Assim, para multiplicar um número por 0,025, você pode dividi-lo por 4 e então dividi-lo por 10. Façamos a multiplicação de 75 por 0,025 usando os conceitos acima: 75 37,5 2 = 37,5 18,75 2 = 18,75 1,875 10 =
  4. 4. SÉRIE DE DICAS P/ CÁLCULOS MAIS RÁPIDOS Prof. Arthur Lima Prof. Arthur Lima www.estrategiaconcursos.com.br 7 Logo, 75 x 0,025 = 1,875 E para dividirmos um número por 0,025, podemos multiplicar por 4 e então multiplicar por 10. Fazendo a divisão de 75 por 0,025: 75 x 4 = 300 300 x 10 = 3000 Logo, 75 3000 0,025 = Fico por aqui. Espero que essas dicas tenham sido úteis para você! Não se esqueça de praticá-las, ok? Só assim elas se tornarão automáticas e você economizará tempo na resolução das questões de sua prova. Conheça ainda meus cursos disponíveis em: https://www.estrategiaconcursos.com.br/cursosPorProfessor/arthur-lima-3215/ Saudações, Prof. Arthur Lima (arthurlima@estrategiaconcursos.com.br)

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