Multiplying two 2 digit numbers difference of 6
1.Choose a 2-digit number.
2.Select a number either 3 smaller or 3 larger.
3.Add 1 to the smaller number, then square.
4.Subtract one from the smaller number.
5.Add this to the square.
Example:
1.If the first number is 78, choose 72 as the second number.
2.The middle number (the average) is 75.
3.Square this middle number: 75 x 75 = 5625.Remember how to square a 2-digit number ending in 5?
4.Subtract 9 from this square: 5625 - 9 = 5616.
5.So 78 x 72 = 5616.
See the pattern?
1.If the first number is 31, choose 37 as the second number.
2.The middle number (the average) is 34.
3.Square this middle number: 34 x 34 = 1156.Remember how to square a 2-digit number ending in 4?
4.Subtract 9 from this square: 1156 - 9 = 1147.
5.So 31 x 37 = 1147.
Choose the second number that will give you the easier square, and use your square shortcuts. Practice.
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
Show Notes
4. Multiplying two 2 digit numbers difference of 4
Show Notes
5. Multiplying two selected 3 digit numbers middle digit 0
Show Notes
8. Multiplying two 2 digit numbers difference of 6
Show Notes
9. Square 2 Digit Number with up down Method
Show Notes
10. Squaring a 2 digit number ending in 5
Show Notes
12. Multiply any two digit number with 11
Show Notes
13. The Squaring of Numbers Ending in 5
Show Notes
14. Multiplying two selected 3 digit numbers middle digit 1
Show Notes
15. Squaring a 2 digit number ending in 3
Show Notes
19. Squaring a 2 digit number ending in 2
Show Notes
20. Squaring a 2digit number ending in 8
Show Notes
21. Digital Sums For Multiplication By Eleven
Show Notes
22. Multiplying two 2 digit numbers same 2nd digit
Show Notes
23. Multiplying two 2 digit numbers difference of 3
Show Notes
24. Multiplication of two numbers around 100 is even easier than you could ever imagine
Show Notes
26. Squaring a 2 digit number beginning with 1
Show Notes
27. Multiplying two 2 digit numbers difference of 1
Show Notes
28. find square of a number between 50 and 60
Show Notes
30. Squaring a 2 digit number ending in 4
Show Notes
31. Multiply any two numbers from 11 to 20 in your head Take 15 x 13
Show Notes
32. Multiplying two 2 digit numbers same 1st digit 2nd digits sum to 10
Show Notes
33. Lets add 1 hr and 35 minutes and 3 hr 55 minutes together
Show Notes
38. Squaring a 2 digit number beginning with 9
Show Notes
39. Multiplying two 2 digit numbers difference of 2
Show Notes
40. Vertically and Crosswise To find 26 Multiplied by 31 in One Line we need to look at a Pattern
Show Notes
41. This little math trick will show you whether a number is divisible by four or not
Show Notes
43. Multiplying two 2 digit numbers difference of 8
Show Notes
45. Squaring a 2 digit number ending in 6
Show Notes
48. Multiplying two 2 digit numbers difference of 10
Show Notes
49. Convert Fahrenheit to Celsius and vice versa
Show Notes
50. How to multiply 123 and 321 in one go
Show Notes
