Math Example: Language of Math--Numerical Expressions--Grouping Symbols--Example 1

Topic

Numerical Expressions

Description

This math example demonstrates how to convert the verbal statement "Twenty times the quantity six plus three" into a numerical expression. The solution shows that this statement can be expressed as 20 * ( 6 + 3 ). This example illustrates the use of grouping symbols (parentheses) to clarify the order of operations in a numerical expression.

Numerical expressions are a fundamental concept in mathematics, serving as a bridge between verbal descriptions and mathematical notation. Examples like this help students understand how to translate word problems into mathematical language, a crucial skill for problem-solving. By focusing on phrases like "times" and "the quantity," students learn to identify key terms that indicate multiplication and grouping.

Providing multiple worked-out examples is essential for students to fully grasp the concept of numerical expressions with grouping symbols. Each example reinforces the pattern of converting verbal statements to mathematical notation, helping students recognize common structures and develop confidence in their ability to interpret and create numerical expressions.

Teacher Script: "Let's look at this example together. When we see the phrase 'Twenty times,' we know we'll be multiplying by 20. The words 'the quantity' tell us to group what comes next. So, we put 6 plus 3 in parentheses. This gives us the expression 20 * ( 6 + 3 ). Remember, the parentheses tell us to do what's inside first before multiplying by 20."

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