Math Example: Language of Math--Numerical Expressions--Addition--Example 22

Topic

Numerical Expressions

Description

This example demonstrates the conversion of the phrase "Negative fifteen increased by ten" into a numerical expression. The image shows how this verbal statement translates to the expression -15 + 10, emphasizing that "increased by" is equivalent to "plus" in mathematical language.

Understanding how to interpret phrases like "increased by" in the context of negative numbers is crucial for students' mathematical development. It helps them grasp the idea that increasing a negative number by a positive amount actually brings the result closer to zero or into positive territory.

Presenting multiple examples of numerical expressions with various phrasings helps students recognize patterns and nuances in mathematical language. This exposure enhances their ability to translate between verbal and symbolic representations of mathematical ideas, particularly when dealing with positive and negative numbers.

Teacher Script: Let's examine this example closely. We see the phrase "increased by" used with a negative number. How does this affect our understanding of the expression? Can you think of a real-world scenario where we might increase a negative quantity?

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