Chapter Overview
The chapter 'Arithmetic Expressions' focuses on introducing algebraic thinking through arithmetic expressions. It explains how to write expressions using numbers, variables, and operators, and how to evaluate them. Students learn how to simplify expressions, substitute values, and understand the significance of forming expressions to represent real-world problems.
Important Keywords
- Expression: A mathematical phrase combining numbers, variables, and operations.
- Variable: A symbol (usually a letter) that can take different values.
- Constant: A fixed number in an expression.
- Coefficient: The numerical factor of a term that contains a variable.
- Term: A part of an expression separated by '+' or '-' signs.
- Operator: Symbols like +, –, ×, ÷ used in expressions.
Detailed Notes
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