RRB NTPC/ASM/CA/TA Exam > RRB NTPC/ASM/CA/TA Videos > General Intelligence & Reasoning for RRB NTPC/ASM > Trick to Square 3-digit Numbers
Trick to Square 3-digit Numbers Video Lecture | General Intelligence & Reasoning for RRB NTPC/ASM - RRB NTPC/ASM/CA/TA
FAQs on Trick to Square 3-digit Numbers Video Lecture - General Intelligence & Reasoning for RRB NTPC/ASM - RRB NTPC/ASM/CA/TA
| 1. What is the trick to easily square a 3-digit number? |  |
Ans. The trick to easily square a 3-digit number is to break it down into two parts: the first part being the tens digit and the second part being the units digit. Then, follow the steps of multiplying and squaring these parts separately before combining them to get the final result.
| 2. Can you provide an example of using the trick to square a 3-digit number? | |
Ans. Sure! Let's take the example of squaring the number 384. We break it down into 300 (the tens digit) and 84 (the units digit). We square each part separately: 300^2 = 90000 and 84^2 = 7056. Finally, we combine these results by adding them together: 90000 + 7056 = 97056. Therefore, 384 squared is 97056.
| 3. Are there any limitations to this trick for squaring 3-digit numbers? | |
Ans. Yes, there are some limitations. This trick is specifically designed for 3-digit numbers, so it may not work efficiently for numbers with more or fewer digits. Additionally, it requires some mental calculation and may not be suitable for those who prefer using traditional multiplication methods.
| 4. How can this trick help in saving time while calculating squares of 3-digit numbers? | |
Ans. This trick can save time while calculating squares of 3-digit numbers by breaking down the number into smaller parts and performing simpler calculations. It eliminates the need for long multiplication and reduces the chances of making errors. By using this trick, one can quickly calculate the squares of 3-digit numbers mentally.
| 5. Can this trick be applied to numbers with decimals or fractions? | |
Ans. No, this trick is specifically designed for whole numbers. It may not work effectively for numbers with decimals or fractions, as the process of breaking down the number and squaring the parts might not yield accurate results. It is best suited for whole 3-digit numbers.
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