Math Example: Language of Math--Numerical Expressions--Subtraction--Example 20

Topic

Numerical Expressions

Description

This example explains converting "Negative seven from fourteen" into a numerical expression. The word "from" indicates subtraction, leading to the expression 14 - (-7).

Numerical expressions are vital for translating everyday language into mathematical notation. This collection helps students learn how to interpret various verbal phrases and convert them into accurate mathematical expressions. By exploring different ways to express subtraction, such as using "from," students understand how language affects operations.

The significance of multiple worked-out examples lies in reinforcing concepts for students. Each example highlights that different verbal cues can represent the same operation, enhancing pattern recognition and boosting confidence in interpreting statements correctly.

Teacher Script: "Let's examine how 'from' indicates subtraction with negatives. When we say 'Negative seven from fourteen,' we're subtracting a negative number, which is like adding a positive one. So, we write this as 14 - (-7). Can you think of other phrases that mean the same thing?"

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