CAT > Quantitative Aptitude (Quant) > Multiplication Tricks: Multiplying Any Number with 11, 12 & 13
Multiplication Tricks: Multiplying Any Number with 11, 12 & 13 Video Lecture - Quantitative Aptitude (Quant)
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FAQs on Multiplication Tricks: Multiplying Any Number with 11, 12 & 13 Video Lecture - Quantitative Aptitude (Quant)
| 1. How do you multiply any number with 11? |  |
Ans. To multiply any number with 11, you simply add the original number to itself and place the sum in between the original digits. For example, to multiply 15 by 11, you would add 15 + 15 and place the sum, 30, between the original digits, resulting in 165.
| 2. What is the multiplication trick for multiplying any number with 12? | |
Ans. To multiply any number with 12, you can use the trick of multiplying the number by 10 and then adding twice the original number. For instance, if you want to multiply 8 by 12, you first multiply 8 by 10 (resulting in 80) and then add twice the original number (8 + 8 = 16). Therefore, 8 multiplied by 12 equals 96.
| 3. How can you multiply any number with 13 using a trick? | |
Ans. To multiply any number with 13, you can multiply the number by 10 and then add three times the original number. For example, if you want to multiply 7 by 13, you multiply 7 by 10 (resulting in 70) and then add three times the original number (7 + 7 + 7 = 21). Therefore, 7 multiplied by 13 equals 91.
| 4. Can these multiplication tricks be used for any number? | |
Ans. Yes, these multiplication tricks can be used for any number. The tricks mentioned for multiplying with 11, 12, and 13 work for any whole number. Just follow the steps mentioned for each trick, and you will be able to multiply any number by these factors efficiently.
| 5. Are there any other multiplication tricks for larger numbers? | |
Ans. Yes, there are several other multiplication tricks for larger numbers. However, the tricks mentioned in this article specifically focus on multiplying with 11, 12, and 13. If you are interested in learning more multiplication tricks for larger numbers, you can explore other resources and techniques available online or in mathematics textbooks.
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Video Description: Multiplication Tricks: Multiplying Any Number with 11, 12 & 13 for CAT 2023 is part of Quantitative Aptitude (Quant) preparation.
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179 videos|158 docs|113 tests
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Timeline
| 00:08 | Multiplying three numbers |
| 00:21 | Multiplication two-digit number with 11 |
| 01:42 | Multiplication three-digit number with 11 |
| 02:16 | Multiplication four-digit number with 11 |
| 04:06 | Multiplying any number with 12 |
| 06:06 | Multiplying any number with 13 |
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