Math Example: Language of Math--Numerical Expressions--Addition--Example 16

Topic

Numerical Expressions

Description

This example demonstrates the conversion of the phrase "Twenty plus negative four" into a numerical expression. The image shows how this verbal statement translates directly to the expression 20 + (-4), illustrating a straightforward use of the word "plus" with a negative number.

Understanding how to interpret the word "plus" when it's used with negative numbers is crucial for students' mathematical development. It reinforces the concept that addition can involve both positive and negative numbers, preparing students for more complex operations and algebraic concepts.

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 word "plus" used with a negative number. How does this compare to our earlier examples with "plus"? Can you think of a real-world situation where we might add a positive number to a negative one?

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