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Math Example: Language of Math--Variable Expressions--Multiplication and Addition--Example 9

Math Example: Language of Math--Variable Expressions--Multiplication and Addition--Example 9

Image of Math Example: Language of Math--Variable Expressions--Multiplication and Addition--Example 9

Topic

Variable Expressions

Description

This example demonstrates how to convert a verbal statement into a variable expression using multiplication and addition. The statement "Twenty multiplied by a number increased by negative fourteen" is translated into the algebraic expression 20x + (-14). This example helps students understand how to interpret mathematical language and represent it symbolically, especially when dealing with negative numbers.

Variable expressions are fundamental in algebra, allowing students to translate real-world situations into mathematical language. This collection of examples reinforces these concepts by presenting various scenarios where variable expressions can be effectively used, helping students develop their algebraic thinking skills.

Exposure to multiple worked-out examples is crucial for students to fully grasp mathematical concepts. Each example provides a unique perspective, reinforcing the underlying principles and ensuring a comprehensive understanding of variable expressions in different contexts.

Teacher Script: "As you study this example, pay attention to how the negative number is incorporated into the expression. The phrase 'increased by negative fourteen' translates to adding a negative number, which is equivalent to subtraction. This understanding of how language affects the structure of expressions, especially with negative numbers, is crucial in algebra."

For a complete collection of math examples related to Variable Expressions click on this link: Math Examples: Variable Expressions: Multiplication and Addition Collection.

Common Core Standards CCSS.MATH.CONTENT.5.OA.A.2, CCSS.MATH.CONTENT.6.EE.A.2
Grade Range 6 - 8
Curriculum Nodes Algebra
    • The Language of Math
        • Numerical Expressions
Copyright Year 2016
Keywords variable expressions, multiplication and addition