When adding or subtracting decimals, what should you do to the decimal points?

When adding or subtracting decimals, what should you do to the decimal points?

• A. Align them to the right
• B. Place them randomly
• C. Directly under one another
• D. Ignore the decimal points

Answer: (C)

When adding or subtracting decimals, it is essential to place the decimal points directly under one another. This ensures that each digit is aligned according to its value, which is crucial for accurate calculations. By aligning the decimal points, you maintain the correct place values (such as tenths, hundredths, etc.) for both numbers involved in the operation. For example, if you are adding 1.25 and 2.3, you would align the numbers so that the decimal points are vertically aligned: ``` 1.25 + 2.30 ------- ``` This alignment allows you to add the numbers correctly, taking into account the value of each digit based on its position relative to the decimal point. Proper alignment is a common practice in arithmetic with decimals and helps minimize errors in calculations.

When adding or subtracting decimals, it is essential to place the decimal points directly under one another. This ensures that each digit is aligned according to its value, which is crucial for accurate calculations. By aligning the decimal points, you maintain the correct place values (such as tenths, hundredths, etc.) for both numbers involved in the operation.

For example, if you are adding 1.25 and 2.3, you would align the numbers so that the decimal points are vertically aligned:

1.25

+  2.30

-------

This alignment allows you to add the numbers correctly, taking into account the value of each digit based on its position relative to the decimal point. Proper alignment is a common practice in arithmetic with decimals and helps minimize errors in calculations.