Math Example: Language of Math--Numerical Expressions--Multiplication--Example 24

Topic

Numerical Expressions

Description

This example demonstrates how to convert the phrase "Thirteen groups of negative eleven" into a numerical expression. The solution explains that "groups of" refers to multiples, resulting in the expression -11 * 13. This conversion illustrates how verbal descriptions of mathematical operations can be translated into concise symbolic notation.

Numerical expressions are fundamental to mathematics, providing a standardized way to represent calculations and relationships between numbers. The examples in this collection showcase various verbal phrases and their corresponding numerical representations, helping students bridge the gap between everyday language and mathematical symbolism.

Exposure to multiple worked-out examples is crucial for students to fully grasp the concept of numerical expressions. Each example reinforces the patterns and rules for conversion, allowing students to recognize similarities and differences across various phrasings. This repeated exposure helps build confidence and fluency in translating between verbal and symbolic representations of mathematical operations.

Teacher Script: "Let's look at this example together. When we see 'groups of' in a math problem, it usually means multiplication. Here, we have 'thirteen groups of negative eleven.' Think about what this means - we're taking negative eleven and repeating it thirteen times. How can we write this as a multiplication? Remember, the order matters in multiplication with negative numbers. Take a moment to consider how you'd write this, and then we'll discuss your ideas."

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