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Chapter 1: Problem 152

In the following exercises, model the subtraction. $$19-8$$

Short Answer

Expert verified
The result of 19 - 8 is 11.

Step by step solution

01

Understand the problem

The exercise involves subtracting two numbers. Start with the larger number and take away the smaller number from it.
02

Set up the subtraction

Write down the number 19. Below it, write the number 8, aligning the digits to properly subtract them.
03

Perform the subtraction

Subtract 8 from 19. Since 19 is larger, the subtraction can be done directly. Always start subtracting from the rightmost digit.
04

Write the result

After subtracting, write down the final result which is 11.

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Key Concepts

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

Basic Arithmetic
Basic arithmetic is the foundation of mathematics. It includes simple operations such as addition, subtraction, multiplication, and division.
Everything in math builds upon these simple concepts.
With a strong understanding of basic arithmetic, tackling more complex math becomes more manageable. Understanding subtraction, in particular, is essential.
It involves taking one number away from another and is a skill used in everyday activities like shopping or budgeting.
Subtraction Steps
Let's break down the steps involved in performing subtraction with our example: 19 - 8.
  • Step 1: Understand the problem: We are tasked with subtracting 8 from 19. To do so, start with the larger number, which is 19, and take away the smaller number, 8.
  • Step 2: Set up the subtraction: Write 19 on a piece of paper or a board. Beneath it, write 8, making sure the digits are aligned properly. This helps keep the math clear and straightforward.
  • Step 3: Perform the subtraction: Begin with the rightmost digit (units place). Since 19 is larger than 8, you can subtract directly. Subtract 8 from 9 in the ones place, then bring down the result. If the problem had numbers where subtraction isn't straightforward, you might need to borrow from the next digit, but that's not necessary here.
  • Step 4: Write the result: After completing the subtraction, write down the final result, which is 11.
This step-by-step method ensures accuracy and helps you understand the subtraction process more clearly.
Math Exercises
Practicing math exercises regularly can help reinforce your understanding of subtraction and other arithmetic operations. Here are some tips to enhance your learning:
  • Use examples similar to 19 - 8 and practice them repeatedly to build confidence.
  • Change the numbers frequently to ensure you understand the subtraction process, not just memorizing answers.
  • Incorporate real-life scenarios where subtraction is necessary, such as calculating change while shopping.
  • Apply subtraction to word problems to improve problem-solving skills.
Regular practice will help you become comfortable with subtraction and prepare you for more advanced mathematical concepts.

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