Math Example: Language of Math--Numerical Expressions--Grouping Symbols--Example 25

Topic

Numerical Expressions

Description

This example shows how to convert "Negative fifteen times the quantity fifteen plus negative seven" into a numerical expression. The expression is written as -15 * (15 + (-7)), using multiplication and grouping symbols.

The concept of numerical expressions is fundamental in mathematics, enabling students to transform verbal descriptions into mathematical notation. This collection provides valuable practice in recognizing key terms and applying correct symbols and groupings, essential skills for solving complex problems. By working through these examples, students improve their ability to interpret and express mathematical relationships accurately.

Seeing multiple worked-out examples is vital for students to fully understand numerical expressions. Each example offers an opportunity to practice identifying key terms, understanding their mathematical significance, and applying appropriate symbols and groupings. This repetition helps students become proficient at translating verbal statements into precise mathematical expressions.

Teacher Script: "Let's look at this example together. What does 'times' suggest about the operation we need? And how should we represent 'the quantity'? Consider why it's important to use parentheses here. How does this affect the order in which we perform operations?"

For a complete collection of math examples related to Numerical Expressions click on this link: Math Examples: Numerical Expressions: Grouping Symbols Collection.