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Multiplication Tricks Video Lecture | Vedic Mathematics for Junior Classes - Class 5

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FAQs on Multiplication Tricks Video Lecture - Vedic Mathematics for Junior Classes - Class 5

1. What are some useful multiplication tricks for quick calculations?
Ans. Some useful multiplication tricks for quick calculations include the "multiplying by 11" trick, where you simply duplicate the digit and place it in between, e.g., 23 x 11 = 253. Another trick is the "multiplying by 9" trick, where you subtract 1 from the digit being multiplied and place it in front, e.g., 7 x 9 = 63. These tricks can help speed up mental multiplication.
2. How can I easily multiply numbers by 5?
Ans. Multiplying numbers by 5 can be made easier by dividing the number being multiplied by 5 in half and then adding a zero at the end. For example, 6 x 5 = 30, as dividing 6 by 2 gives 3 and adding a zero yields 30. This trick simplifies the multiplication process and saves time.
3. Are there any tricks for multiplying numbers with a lot of zeros?
Ans. Yes, there are tricks for multiplying numbers with a lot of zeros. One trick is to count the number of zeros in both numbers being multiplied, add them up, and then multiply the remaining digits. Finally, add the counted zeros at the end. For example, 400 x 700 = 280,000, as there are three zeros in total (two from 400 and one from 700), and multiplying 4 by 7 gives 28.
4. How can I quickly multiply numbers close to 100?
Ans. To quickly multiply numbers close to 100, you can subtract the difference between the number and 100 from 100, and then multiply the result by 100. For example, to calculate 97 x 103, you can subtract 3 from 100 to get 97, and then multiply 97 by 100, resulting in 9,700.
5. What is the trick to multiplying numbers that are multiples of 10?
Ans. When multiplying numbers that are multiples of 10, you can simply remove the zero from one of the numbers and multiply the remaining digits. The result will have the same number of zeros as the total number of zeros in both numbers. For example, 40 x 50 = 2,000, as removing the zero from 40 gives 4, and multiplying it by 5 gives 20, which is then followed by the two zeros from the original numbers.
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