Math Example: Language of Math--Numerical Expressions--Subtraction--Example 2

Topic

Numerical Expressions

Description

This example illustrates the conversion of the verbal statement "Nineteen minus four" into a numerical expression. The word "minus" directly translates to the subtraction operation, resulting in the expression 19 - 4.

Numerical expressions are a fundamental concept in mathematics, serving as a bridge between everyday language and mathematical notation. This collection of examples helps students learn how to interpret various verbal phrases and convert them into precise mathematical expressions. By presenting different ways to express subtraction, such as "minus," "take away," and "less," students develop a comprehensive understanding of how language relates to mathematical operations.

The importance of multiple worked-out examples cannot be overstated in helping students fully grasp the concept of numerical expressions. Each example reinforces the idea that different verbal cues can represent the same mathematical operation. This repetition aids in pattern recognition and builds confidence in students' ability to interpret and convert verbal statements into mathematical language.

Teacher Script: "Now, let's look at another way to express subtraction. When we say 'Nineteen minus four,' we're using a word that directly means subtraction. So, we write this as 19 - 4. Notice how 'minus' is just another way to say 'subtract.' Can you think of a real-life situation where you might use the word 'minus' to describe taking something away?"

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