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Digital Sum Tricks Video Lecture | Vedic Mathematics for Junior Classes - Class 5
FAQs on Digital Sum Tricks Video Lecture - Vedic Mathematics for Junior Classes - Class 5
| 1. What is a digital sum? |  |
Ans. The digital sum of a number is the sum of its digits. For example, the digital sum of 123 is 1 + 2 + 3 = 6.
| 2. How can the digital sum be calculated? | |
Ans. To calculate the digital sum of a number, you can add up its individual digits. If the number has more than one digit, you continue adding the digits until you have a single-digit result.
| 3. Are there any tricks to quickly find the digital sum of a large number? | |
Ans. Yes, there are some tricks that can help you find the digital sum of a large number quickly. One such trick is to repeatedly subtract 9 from the number until you are left with a single-digit result. The final single-digit number will be the digital sum of the original number.
| 4. Can the digital sum be used to determine divisibility by certain numbers? | |
Ans. Yes, the digital sum can be used to determine divisibility by certain numbers. For example, if the digital sum of a number is divisible by 3, then the original number is also divisible by 3. Similarly, if the digital sum is divisible by 9, then the original number is divisible by 9.
| 5. Is the digital sum only applicable to positive integers? | |
Ans. No, the digital sum can be calculated for any integer, including negative numbers. The same rules apply - you add up the digits of the number to find the digital sum. However, the resulting digital sum may be negative if the original number is negative.
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Video Description: Digital Sum Tricks for Class 5 2025 is part of Vedic Mathematics for Junior Classes preparation.
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