Mathematics

Vedic Maths

The Squaring of Numbers Ending in 5

If we wanted to square the number 25, i.e. 25 x 25, we would conventionally take 3 lines of working out. Vedic Mathematics merely looks at the Question, applies one of the 16 Sutras,

and solves it Mentally in One-Line. In this case, the Sutra at work is "By One More Than The Previous Digit". Observing that 25 is a 2 digit number, 5 is the last digit, but we are mainly

interested in "The Previous Digit"which is 2. We say, mentally, ""What is One more than Two?"" It is 3. The word ""By"" in the Sutra really means "to multiply".

The setting out for the first half of the answer is thus:

²

To this we tag on the last digit ""5"" squared:

Thus the answer is 625

Similarly, all other numbers that end in 5, when squared, can be done instantly:
15² = 1 x 2 / 5 x 5 = 2 / 25 = 225
35² = 3 x 4 / 5 x 5 = 12 / 25 = 1,225
45² = 4 x 5 / 5 x 5 = 20 / 25 = 2,025
95² = 9 x 10 / 5 x 5 = 90 / 25 = 9, 025

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Notes

Vedic Maths - Notes

1. will you find square of 257

2. Square 2 Digit Number with up down Method

3. Multiplying two 2 digit numbers difference of 4

4. Squaring a 2 digit number ending in 2

5. Multiplying two 2 digit numbers difference of 6

6. Squaring a 2 digit number ending in 3

7. Squaring a 2 digit number beginning with 1

8. How will you multiply 411

9. Squaring numbers in the 200s

10. Multiplying by 11 shortcut

11. Calculating the sum of two numbers

12. Squaring a 2digit number ending in 8

13. How will you multiply 29 to 99

14. 50 Kilos to pounds

15. Multiply any two digit number with 11

16. Squaring a 2 digit number ending in 5

17. Squaring a 2 digit number ending in 4

18. Is 456138 divisible by 9

19. Squaring numbers made up of 1s

20. Likewise you can find out square of a number that is one less than the number whose square is known

21. Method for diving by 9

22. Multiply any two numbers from 11 to 20 in your head Take 15 x 13

23. Multiplying two 2 digit numbers difference of 8

24. Multiplying two 2 digit numbers difference of 3

25. Multiplying two selected 3 digit numbers middle digit 1

26. This little math trick will show you whether a number is divisible by four or not

27. Digital Sums For Multiplication By Eleven

28. Lets add 1 hr and 35 minutes and 3 hr 55 minutes together

29. find square of a number between 50 and 60

30. The Squaring of Numbers Ending in 5

31. How will you square up 109

32. xy as two digit number

33. Multiplying two selected 3 digit numbers middle digit 0

34. How will you square 1011

35. Multiplying two 2 digit numbers difference of 10

36. How will you square 53

37. Simple Tricks to multiply

38. Squaring a 2 digit number beginning with 9

39. Vertically and Crosswise To find 26 Multiplied by 31 in One Line we need to look at a Pattern

40. Converting Kilos to pounds

41. Calculate square of 31 or say 61

42. Multiplying two 2 digit numbers difference of 1

43. Squaring a 2 digit number ending in 1

44. Converting Kilometres to Miles

45. Convert Fahrenheit to Celsius and vice versa

46. Simple trick to remember table of 19

47. Multiplying two 2 digit numbers difference of 2

48. Squaring a 2 digit number ending in 7

49. How to multiply 123 and 321 in one go

50. Square of the Number