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Square of any 3 Digits Number Ending with 5 Video Lecture | Vedic Mathematics - Class 8

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FAQs on Square of any 3 Digits Number Ending with 5 Video Lecture - Vedic Mathematics - Class 8

1. What is the formula to find the square of a three-digit number ending with 5?
Ans. The formula to find the square of a three-digit number ending with 5 is (n * (n + 1)) as the last two digits will always be 25.
2. Can the square of a three-digit number ending with 5 be a four-digit number?
Ans. No, the square of a three-digit number ending with 5 will always result in a five-digit number as the last two digits will be 25.
3. Can the square of a three-digit number ending with 5 be a perfect square?
Ans. Yes, the square of a three-digit number ending with 5 can be a perfect square as long as the number itself is a perfect square. For example, the square of 125 (which is a perfect square) is 15625.
4. How can I find the square of a three-digit number ending with 5 mentally?
Ans. To find the square of a three-digit number ending with 5 mentally, you can use the formula (n * (n + 1)) and multiply the hundreds digit by the next consecutive number. For example, to find the square of 135, you would multiply 13 by 14, resulting in 182. Then append 25 to the end to get the final square of 135, which is 18225.
5. Are there any patterns or shortcuts to find the square of a three-digit number ending with 5?
Ans. Yes, there is a pattern to find the square of a three-digit number ending with 5. The last two digits will always be 25. To find the remaining digits, you can square the hundreds digit and append it to the front. For example, to find the square of 195, you would square 1 to get 1 and append 25 to the end, resulting in 19225.

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