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Addition of Decimals Video Lecture | Mathematics (Ganita Prakash) Class 7 - New NCERT

FAQs on Addition of Decimals Video Lecture - Mathematics (Ganita Prakash) Class 7 - New NCERT

1. What are the basic steps for adding decimals?

Ans. To add decimals, follow these steps: First, align the decimal points of the numbers you are adding. Then, if necessary, pad the shorter number with zeros to ensure both numbers have the same number of decimal places. Next, add the numbers starting from the rightmost digit, carrying over any values as needed. Finally, place the decimal point in the sum directly below the aligned decimal points.

2. How do you handle adding decimals with different numbers of decimal places?

Ans. When adding decimals with different numbers of decimal places, first align the decimal points. Make sure each number has the same number of decimal places by adding zeros to the end of the shorter number. For example, if you are adding 1.5 and 2.35, you can write 1.50 to make it easier to add. Then, proceed with the addition as normal.

3. What should I do if I need to add decimals in a word problem?

Ans. To add decimals in a word problem, first, read the problem carefully to identify the numbers that need to be added. Write them down in decimal form, aligning the decimal points. Follow the steps for adding decimals as outlined previously. Finally, ensure that your answer is in the context of the problem, including appropriate units if necessary.

4. Can you give an example of adding decimals in real life?

Ans. Yes! For instance, if you are shopping and you buy three items that cost $3.25, $4.50, and $2.75, you would add these amounts together. Align the decimal points: 3.25 + 4.50 + 2.75 This gives you a total of $10.50. This real-life example shows how adding decimals is useful for budgeting.

5. What are some common mistakes to avoid when adding decimals?

Ans. Common mistakes include not aligning decimal points correctly, forgetting to add zeros to make the decimal places equal, and misplacing the decimal point in the final answer. To avoid these errors, double-check your alignment and calculations, and ensure the decimal point is placed correctly in the sum.

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Sep 26, 2025 Last updated

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	Mathematics (Ganita Prakash) Class 7 - New NCERT 41 videos\|251 docs\|8 tests

Mathematics (Ganita Prakash) Class 7 - New NCERT

41 videos|251 docs|8 tests

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