Addition | Math | Summary and Q&A

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September 9, 2022
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The Organic Chemistry Tutor
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Addition | Math

TL;DR

Learn how to add two large numbers using the long addition method, where you line up the numbers and add each column to find the answer.

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Questions & Answers

Q: What is the long addition method?

The long addition method is a way to add two large numbers by aligning them and adding each column from right to left. It involves carrying over any numbers that are 10 or more to the next column.

Q: How do you add the numbers in each column?

To add the numbers in each column, you simply add them together. For example, if you have 4 and 9 in the first column, the sum is 13. Write 3 and carry over the 1.

Q: What do you do when you get a carry over number?

When you get a carry over number, you write the last digit of the sum in the current column and carry over the other digit to the next column. This helps maintain the correct place value.

Q: Can you provide an example of adding two large numbers using the long addition method?

Sure! Let's add 1584 and 759. Starting from the right, we add 4 and 9, which is 13. Write 3 and carry over the 1. Then add 1, 8, and 5, which is 14. Write 4 and carry over the 1. Finally, add 1, 5, and 7, which is 13. Write 3 and carry over the 1. The answer is 2343.

Summary & Key Takeaways

  • In long addition, you align the two numbers and add each column from right to left.

  • Carry over any numbers that are 10 or more, and add them to the next column.

  • Practice examples are provided to demonstrate the long addition method.

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