Simple Tricks to multiply
- Multiply by 5: Multiply by 10 and divide by 2.
- Multiply by 6: Sometimes multiplying by 3 and then 2 is easy.
- Multiply by 9: Multiply by 10 and subtract the original number.
- Multiply by 12: Multiply by 10 and add twice the original number.
- Multiply by 13: Multiply by 3 and add 10 times original number.
- Multiply by 14: Multiply by 7 and then multiply by 2
- Multiply by 15: Multiply by 10 and add 5 times the original number, as above.
- Multiply by 16: You can double four times,if you want to. Or you can multiply by 8 and then by 2.
- Multiply by 17: Multiply by 7 and add 10 times original number.
- Multiply by 18: Multiply by 20 and subtract twice the original number (which is obvious from the first step).
- Multiply by 19: Multiply by 20 and subtract the original number.
- Multiply by 24: Multiply by 8 and then multiply by 3.
- Multiply by 27: Multiply by 30 and subtract 3 times the original number (which is obvious from the first step).
- Multiply by 45: Multiply by 50 and subtract 5 times the original number (which is obvious from the first step).
- Multiply by 90: Multiply by 9 (as above) and put a zero on the right.
- Multiply by 98: Multiply by 100 and subtract twice the original number.
- Multiply by 99: Multiply by 100 and subtract the original number.
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. Squaring a 2 digit number ending in 2
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6. Squaring a 2 digit number ending in 3
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7. Multiplying two 2 digit numbers difference of 6
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9. Squaring a 2 digit number beginning with 1
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12. Squaring a 2digit number ending in 8
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15. Multiply any two digit number with 11
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16. Squaring a 2 digit number ending in 5
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17. Likewise you can find out square of a number that is one less than the number whose square is known
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20. Multiplying two selected 3 digit numbers middle digit 1
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21. Multiplying two 2 digit numbers difference of 3
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22. Squaring a 2 digit number ending in 4
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23. Multiply any two numbers from 11 to 20 in your head Take 15 x 13
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24. Digital Sums For Multiplication By Eleven
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26. Multiplying two 2 digit numbers difference of 8
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27. find square of a number between 50 and 60
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28. This little math trick will show you whether a number is divisible by four or not
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29. Lets add 1 hr and 35 minutes and 3 hr 55 minutes together
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31. The Squaring of Numbers Ending in 5
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32. Multiplying two selected 3 digit numbers middle digit 0
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35. Vertically and Crosswise To find 26 Multiplied by 31 in One Line we need to look at a Pattern
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38. Multiplying two 2 digit numbers difference of 10
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39. Multiplying two 2 digit numbers difference of 1
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41. Squaring a 2 digit number beginning with 9
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43. Convert Fahrenheit to Celsius and vice versa
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44. Multiplication of two numbers around 100 is even easier than you could ever imagine
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46. Squaring a 2 digit number ending in 1
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47. How to multiply 123 and 321 in one go
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48. Multiplying two 2 digit numbers difference of 2
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49. Simple trick to remember table of 19
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50. Multiplying two 2 digit numbers same 2nd digit
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