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Subtraction Of Numbers In An Easy Method

Mamata Mund
19/09/2017 0 2

As we know in decimal system ten digits are used. I.e 0 - 9. Subtracting a number from base 10, 100, 1000. An easy way to calculate is just subtracting all digits of a digit from 9 and last digit by 10.

For an example, subtracting 56 from 100:

    100 - 56 = (9 - 5) | (10 - 6) = 44

Let's check it using our conventional method, in units place it is 6 there. So carry from tens place, there also 0, so so take carry from hundred places, I.e in units place has value 10 so subtracting 6 from 10 we get 4 and now in tens place there is digit 9. Now subtract 5 from 9 we get 9 - 5 = 4. So our answer is 44. So lengthy using carry.

If we use the first method we have to do just only subtract 9 from all digits and last digit from 10. This is one of the powerful sutra "All From 9 And Last From 10" Of Vedic Mathematics. We also know that complement of 56 is 44. As if we add 56 with 44 we get 100.

Next, try for subtracting 65 from 10000:

10000 - 65 = 10000 - 0065 = 9935.


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Mamata Mund | 24/10/2017

Thanks . Subtracting 16 from 61 61-16=(6-1)| (1-6) 1st part it is 6-1=5 . But in 2nd part 1 less than 6. We can't subtract. So 1 less from 5 (answer of 1st part) is 5-1=4 In 2nd part 11-6=5 So answer is 45 61-16=45

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Shyam Sundar Panda | 22/10/2017

Very good how to subtract a number and its reverse in V Math 61-16

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