Multiply any two numbers from 11 to 20 in your head Take 15 x 13
Place the larger no. first in your mind and then do something like this Take the larger no on the top and the second digit of the smaller no. in the bottom.
The rest is quite simple. Add 15+3 = 18 . Then multiply 18 × 10 = 180.
Now multiply the second digit of both the no.s (ie; 5 × 3 = 15) Now add 180 + 15.
Here is the answer 180 + 15 = 195 Think over it. This is a simple trick. It will help you a lot.
Notes
Vedic Maths - Notes
2. Square 2 Digit Number with up down Method
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3. Multiplying two 2 digit numbers difference of 4
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4. Multiplying two 2 digit numbers difference of 6
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5. Squaring a 2 digit number ending in 2
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6. Squaring a 2 digit number beginning with 1
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8. Squaring a 2 digit number ending in 3
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11. Squaring a 2digit number ending in 8
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15. Multiply any two digit number with 11
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17. Squaring a 2 digit number ending in 4
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19. Multiplying two 2 digit numbers difference of 8
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20. Multiplying two 2 digit numbers difference of 3
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21. Multiplying two selected 3 digit numbers middle digit 1
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22. Multiply any two numbers from 11 to 20 in your head Take 15 x 13
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24. Squaring a 2 digit number ending in 5
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25. Lets add 1 hr and 35 minutes and 3 hr 55 minutes together
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26. This little math trick will show you whether a number is divisible by four or not
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27. Likewise you can find out square of a number that is one less than the number whose square is known
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28. Digital Sums For Multiplication By Eleven
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29. find square of a number between 50 and 60
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31. The Squaring of Numbers Ending in 5
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33. Multiplying two 2 digit numbers difference of 10
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34. Multiplying two selected 3 digit numbers middle digit 0
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37. Squaring a 2 digit number beginning with 9
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38. Simple trick to remember table of 19
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40. Squaring a 2 digit number ending in 1
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42. Vertically and Crosswise To find 26 Multiplied by 31 in One Line we need to look at a Pattern
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45. Multiplying two 2 digit numbers difference of 1
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46. Multiplying two 2 digit numbers difference of 2
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47. Convert Fahrenheit to Celsius and vice versa
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48. Squaring a 2 digit number ending in 7
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49. How to multiply 123 and 321 in one go
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