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Números racionais e adição e subtração

Track :

Mathematics

Course Presenter :

Gis com Giz Matemática

Lessons no : 129

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What will you learn in this course?
  • Understand and identify rational numbers in various forms including fractions, decimals, and integers
  • Compare and represent rational numbers accurately using number lines and visual models
  • Perform addition and subtraction of fractions by finding common denominators and simplifying results
  • Execute addition and subtraction of decimal numbers with precision and proper alignment
  • Apply rules of signs and value absolute to perform operations with negative numbers confidently
  • Simplify complex rational expressions involving fractions and decimals effectively
  • Develop logical reasoning and problem-solving skills through practical exercises with rational numbers
  • Utilize rational number operations to solve real-world mathematical problems and everyday scenarios
  • Recognize the importance of rational numbers in different mathematical contexts and applications
  • Master the process of converting between fractions, decimals, and percentages for versatile calculations
  • Enhance accuracy and speed in calculations involving rational numbers through guided practice
  • Apply rational number operations to solve equations and inequalities in various contexts
  • Use visual aids and models to explain and understand the concepts of rational numbers and their operations
  • Identify common mistakes in rational number calculations and learn strategies to avoid them
  • Strengthen foundational skills for advanced topics in algebra, fractions, and mathematical reasoning
  • Build confidence in handling negative numbers and complex rational expressions in practical situations

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Lessons | 129
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Números racionais e adição e subtração, apresenta de forma clara e prática o estudo dos números racionais — aqueles que podem ser expressos como frações, decimais ou inteiros. O aluno aprende a identificar, comparar e representar esses números, compreendendo sua importância no cotidiano e em diversas áreas da matemática. O curso explica detalhadamente como realizar as operações de adição e subtração entre frações, destacando a necessidade de encontrar denominadores comuns e simplificar resultados. São abordadas também as operações com números decimais e negativos, reforçando o conceito de valor absoluto e regras de sinais. Por meio de exemplos e exercícios guiados, o curso desenvolve o raciocínio lógico e a precisão nos cálculos, ajudando o estudante a dominar as bases essenciais para operações mais avançadas com números racionais. Gis com Giz Matemática