This little math trick will show you whether a number is divisible by four or not
Let's look at 1234
Does 4 divide evenly into 1234?
Well for 4 to divide into any number we have to make sure that the last number is even. If it is an odd number, there is no way it will go in evenly.
So, for example, 4 will not go evenly into 1233 or 1235.
So now we know that for 4 to divide evenly into any number the number has to end with an even number.
Take the last number and add it to 2 times the second last number.If 4 goes evenly into this number then you know that 4 will go evenly into the whole number So
4 goes into 10 two times with a remainder of 2 so it does not go in evenly.
Therefore 4 into 1234 does not go in completely.
Lets try 4 into 3436546
So, from our example, take the last number, 6 and add it to twice the penultimate number, 4
4 goes into 14 three times with two remainder.
So it doesn't go in evenly.
Let's try one more.
4 goes into 12 three times with 0 remainder.
Therefore 4 goes into 234436 evenly
Notes
Vedic Maths - Notes
3. Multiplying two 2 digit numbers difference of 4
Show Notes
4. Multiplying two 2 digit numbers difference of 6
Show Notes
5. Squaring a 2 digit number beginning with 1
Show Notes
9. Square 2 Digit Number with up down Method
Show Notes
11. Squaring a 2 digit number ending in 2
Show Notes
13. Simple trick to remember table of 19
Show Notes
14. Multiply any two digit number with 11
Show Notes
15. Multiplying two 2 digit numbers difference of 3
Show Notes
19. Squaring a 2 digit number ending in 3
Show Notes
20. find square of a number between 50 and 60
Show Notes
21. Squaring a 2 digit number ending in 4
Show Notes
22. Likewise you can find out square of a number that is one less than the number whose square is known
Show Notes
23. Multiplying two selected 3 digit numbers middle digit 1
Show Notes
24. Digital Sums For Multiplication By Eleven
Show Notes
25. Multiplying two 2 digit numbers difference of 8
Show Notes
28. Squaring a 2digit number ending in 8
Show Notes
32. Vertically and Crosswise To find 26 Multiplied by 31 in One Line we need to look at a Pattern
Show Notes
33. Multiply any two numbers from 11 to 20 in your head Take 15 x 13
Show Notes
34. Lets add 1 hr and 35 minutes and 3 hr 55 minutes together
Show Notes
35. Squaring a 2 digit number beginning with 9
Show Notes
36. Squaring a 2 digit number ending in 5
Show Notes
37. Convert Fahrenheit to Celsius and vice versa
Show Notes
38. Multiplying two selected 3 digit numbers middle digit 0
Show Notes
40. Squaring a 2 digit number ending in 1
Show Notes
41. This little math trick will show you whether a number is divisible by four or not
Show Notes
42. Multiplying two 2 digit numbers difference of 10
Show Notes
43. How to multiply 123 and 321 in one go
Show Notes
44. Multiplying two 2 digit numbers difference of 1
Show Notes
45. The Squaring of Numbers Ending in 5
Show Notes
47. Squaring a 2 digit number ending in 7
Show Notes
49. Multiplying two 2 digit numbers difference of 2
Show Notes
