Class 6 Exam > Class 6 Videos > Crash Course for Class 6 > Addition and Subtraction of Decimals
Addition and Subtraction of Decimals Video Lecture | Crash Course for Class 6
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FAQs on Addition and Subtraction of Decimals Video Lecture - Crash Course for Class 6
| 1. How do I add two decimal numbers? |  |
Ans. To add two decimal numbers, align the numbers by their decimal points. Then, add each column starting from the right, just like whole numbers. If the sum of a column is 10 or more, carry over the extra value to the next column on the left. Finally, place the decimal point in the sum directly below the decimal points of the numbers being added.
| 2. What is the process for subtracting decimal numbers? | |
Ans. To subtract decimal numbers, align them by their decimal points. Subtract each column starting from the right. If the top number in a column is smaller than the bottom number, you need to borrow from the next left column. After performing the subtraction, place the decimal point in the result directly below the decimal points of the numbers being subtracted.
| 3. How can I check if my addition or subtraction of decimals is correct? | |
Ans. You can check your addition or subtraction of decimals by performing the inverse operation. For addition, subtract the sum from one of the original numbers to see if you get the other number. For subtraction, add the result back to the subtracted number to see if you arrive at the original number. If both checks are correct, your calculations are likely accurate.
| 4. Are there any special rules for adding or subtracting decimals? | |
Ans. Yes, when adding or subtracting decimals, ensure that the decimal points are aligned. Also, it's important to add zeros to the right of the numbers if necessary to make sure that each number has the same number of decimal places. This helps in maintaining accuracy during calculations.
| 5. What should I do if I have different decimal places when adding or subtracting? | |
Ans. If the numbers you are adding or subtracting have different decimal places, you should adjust them by adding zeros to the number with fewer decimal places. For example, if you are adding 2.5 and 3.75, you can write 2.50 instead of 2.5. This way, both numbers have the same number of decimal places, making the addition or subtraction easier and more accurate.
About this Video
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Oct 24, 2024 Last updated |
Video Description: Addition and Subtraction of Decimals for Class 6 2024 is part of Crash Course for Class 6 preparation.
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