Math Example: Language of Math--Numerical Expressions--Multiplication--Example 26

Topic

Numerical Expressions

Description

This example demonstrates the conversion of the statement "Negative fifteen times nine" into a numerical expression. The solution explains that statements using "times" are straightforward to convert, resulting in the expression -15 * 9. This example highlights how negative numbers are handled in multiplication expressions.

Numerical expressions form the foundation of algebraic thinking and advanced mathematics. By learning to translate verbal statements into mathematical notation, students develop the skills necessary for more complex problem-solving. This collection of examples provides a comprehensive look at various ways multiplication can be expressed in words and symbols.

Exposure to multiple worked examples is crucial for students to fully grasp mathematical concepts. Each example reinforces the underlying principles while introducing slight variations, helping students build a flexible understanding of numerical expressions. This approach allows learners to recognize patterns and apply their knowledge to new situations with confidence.

Teacher Script: "Let's look at this example together. We see the phrase 'negative fifteen times nine.' The word 'times' clearly indicates multiplication, but we need to be careful with the negative number. How do you think we should write this as a numerical expression? Consider the order of the numbers and where the negative sign should be placed. Take a moment to think about it, and then we'll discuss your ideas and why the correct expression is written as it is."

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