Math Example: Language of Math--Numerical Expressions--Subtraction--Example 9

Topic

Numerical Expressions

Description

This example illustrates how to convert the verbal statement "Nine subtracted from eighteen" into a numerical expression. The phrase "subtracted from" indicates subtraction, resulting in the expression 18 - 9.

Understanding numerical expressions is crucial as they connect everyday language with mathematical notation. This collection of examples aids students in interpreting various verbal phrases and converting them into precise mathematical expressions. By exploring different ways to express subtraction, including phrases like "subtracted from," students gain insight into how language influences mathematical operations and the importance of number order.

The importance of multiple worked-out examples cannot be overstated in helping students fully grasp numerical expressions. Each example reinforces that different verbal cues can signal the same operation but may require attention to number order. This repetition enhances pattern recognition and builds confidence in converting verbal statements accurately.

Teacher Script: "Let's look at a slightly different way to express subtraction. When we say 'Nine subtracted from eighteen,' we need to pay attention to the order. 'Subtracted from' tells us that eighteen comes first. So, we write this as 18 - 9. Why do you think it's important to notice word order when converting statements?"

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