Math Example: Language of Math--Numerical Expressions--Subtraction--Example 7

Topic

Numerical Expressions

Description

This example demonstrates how to convert the verbal statement "Eighteen minus five" into a numerical expression. The word "minus" directly translates to the subtraction operation, resulting in the expression 18 - 5.

Numerical expressions are a crucial concept in mathematics, bridging the gap between everyday language and mathematical notation. This collection of examples helps students learn 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.

Providing multiple worked-out examples is essential for students to fully grasp the concept of numerical expressions. Each example reinforces the idea that different verbal cues can represent the same mathematical operation. This repetition helps students develop pattern recognition skills and build confidence in their ability to interpret and convert verbal statements into mathematical language.

Teacher Script: "Let's look at another example of subtraction. When we say 'Eighteen minus five,' we're using the word 'minus' which directly means subtraction. So, we write this as 18 - 5. 'Minus' is probably the most common word we use for subtraction in math. Can you think of other situations where you might use the word 'minus' in everyday life 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.