Math Example: Language of Math--Numerical Expressions--Grouping Symbols--Example 3

Topic

Numerical Expressions

Description

This example illustrates how to convert the statement "Twenty divided by the quantity nineteen plus seven" into a numerical expression. The solution shows that this can be expressed as 20 / ( 19 + 7 ). This example introduces division in combination with grouping symbols, expanding students' understanding of complex numerical expressions.

Numerical expressions with grouping symbols are a key concept in algebra and higher mathematics. These examples help students develop the critical thinking skills needed to interpret and construct mathematical statements. By working through various scenarios involving different operations and groupings, students build a strong foundation for more advanced mathematical concepts.

Providing a diverse set of examples is crucial for students to fully grasp the nuances of numerical expressions. Each new example presents a slightly different challenge, helping students recognize patterns and develop strategies for tackling increasingly complex expressions. This repetition with variation is essential for building confidence and proficiency in mathematical reasoning.

Teacher Script: "Let's examine this example together. We see 'Twenty divided by,' which tells us we're dividing 20 by something. The phrase 'the quantity' indicates that what follows should be grouped. So, we put 19 plus 7 in parentheses. Our final expression is 20 / ( 19 + 7 ). Remember, the parentheses mean we add 19 and 7 before dividing 20 by the result."

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