Multiplying two 2 digit numbers difference of 1
1.Choose a 2-digit number.
2.Select a number either 1 smaller or 1 larger.
3.Square the larger number (multiply it by itself).
4.Subtract the larger number from the product.OR
5.Square the smaller number (multiply it by itself).
6.Add the smaller number to the product. Pick the easier one to square.
Example:
1.If the first number is 76, choose 75 as the second number.
2.75 x 75 = 5625 (square the smaller). Remember how to square a two-digit number ending in 5?
3.5625 + 75 = 5700 (add the smaller).
4.So 76 x 75 = 5700.
See the pattern?
1.If the first number is 32, choose 31 as the second number.
2.32 x 32 = 1024 (square the larger). Remember how to square a two-digit number ending in 2?
3.1024 - 32 = 992 (subtract the larger).
4.So 32 x 31 = 992.
Notes
Vedic Maths - Notes
3. Likewise you can find out square of a number that is one less than the number whose square is known
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4. Multiplying two 2 digit numbers difference of 4
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6. Multiplying two selected 3 digit numbers middle digit 0
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8. Multiplying two 2 digit numbers difference of 6
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9. Square 2 Digit Number with up down Method
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10. Squaring a 2 digit number ending in 5
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11. The Squaring of Numbers Ending in 5
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13. Multiply any two digit number with 11
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14. Multiplying two selected 3 digit numbers middle digit 1
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16. Squaring a 2 digit number ending in 3
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19. Squaring a 2 digit number ending in 2
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20. Squaring a 2digit number ending in 8
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21. Digital Sums For Multiplication By Eleven
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22. Multiplying two 2 digit numbers same 2nd digit
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23. Multiplying two 2 digit numbers difference of 3
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25. Multiplication of two numbers around 100 is even easier than you could ever imagine
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26. Squaring a 2 digit number beginning with 1
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27. find square of a number between 50 and 60
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28. Multiplying two 2 digit numbers difference of 1
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30. Squaring a 2 digit number ending in 4
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31. Multiplying two 2 digit numbers same 1st digit 2nd digits sum to 10
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33. Lets add 1 hr and 35 minutes and 3 hr 55 minutes together
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35. Multiply any two numbers from 11 to 20 in your head Take 15 x 13
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37. Squaring a 2 digit number beginning with 9
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39. Multiplying two 2 digit numbers difference of 2
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40. Vertically and Crosswise To find 26 Multiplied by 31 in One Line we need to look at a Pattern
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41. This little math trick will show you whether a number is divisible by four or not
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43. Multiplying two 2 digit numbers difference of 8
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45. Squaring a 2 digit number ending in 6
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47. Multiplying two 2 digit numbers difference of 10
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49. Squaring a 2 digit number ending in 7
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50. How to multiply 123 and 321 in one go
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