Problem 9 Multiply. $$(9)(2)$$... [FREE SOLUTION]

Chapter 3: Problem 9

Multiply. $$(9)(2)$$

Short Answer

Expert verified

The result of multiplying $9 \times 2$ is 18.

Step by step solution

Understand the multiplication operation

Multiplication is a mathematical operation that basically adds a number to itself a certain number of times. So, $9 \times 2$ means we are adding the number 2 to itself, 9 times or conversely, adding the number 9 to itself 2 times.

Perform the multiplication operation

Using any of the interpretation from step 1, you can perform the operation. Let's choose adding 2 nine times: $2+2+2+2+2+2+2+2+2$. If you add these all together, you get 18.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Arithmetic Operations

Multiplication is one of the four basic arithmetic operations, alongside addition, subtraction, and division. This operation involves taking one number, known as the multiplicand, and adding it to itself a specific number of times, dictated by another number known as the multiplier.

In our example, the numbers 9 and 2 are multiplied, which can be imagined as adding 9 twice or 2 nine times.

When working with multiplication:

Look at the two numbers you are multiplying.
Identify which is easier for you to repeat.
Apply the process of repeated addition.

This basic understanding lays the foundation for more complex calculations later.

Elementary Math

Elementary math introduces us to fundamental concepts like multiplication, which is essential in solving everyday problems. Learning multiplication can be made simpler by visualizing the process through repeated addition.

For instance, multiplying 9 by 2 can be visualized by adding 2 to itself nine times. This method doesn鈥檛 just help in calculating the answer but also strengthens our understanding of how multiplication operates.

Approaching multiplication through such visual techniques can make it less intimidating for young learners:

Helps in understanding the nature of numbers.
Provides a concrete method to solve problems.
Builds a strong arithmetic foundation.

This hands-on approach is key to mastering elementary math skills.

Prealgebra Concepts

Prealgebra focuses on ensuring a clear understanding of numbers and basic operations, serving as a bridge to more advanced algebraic concepts. A strong grasp of multiplication, as done in the example of 9 times 2, lays the groundwork for this study.

Prealgebra emphasizes:

Understanding the relationship between numbers.
Grasping how multiplication interacts with other operations like addition and subtraction.
Learning to predict and confirm results using fundamental concepts.

By practicing with simple calculations, students develop an intuitive sense of number manipulation, which is crucial for tackling more complex problems later on in their mathematical journey.

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91影视

Multiply. $$(9)(2)$$

Short Answer

Step by step solution

Understand the multiplication operation

Perform the multiplication operation

Key Concepts

Arithmetic Operations

Elementary Math

Prealgebra Concepts

One App. One Place for Learning.

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