Question

Solve the multiply {using formula of nikhil am sutra} 8×9
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Answer 1

Answer:

8 - 2

9 - 1

7 2

Between each of the numbers to be multiplied and the remainders put a connecting minus to show that the remainders are less than the base.

digit from the right digit of the product.

The left-hand side digit can be obtained by cross subtract one deficiency in the second column from the original number in the left column ...Both cross subtractions (i.e. 8-1 and 9-2) will give the same result i.e 7

The right-hand digit of the product is the result of the vertical multiplication of the remainders in the right column (in our question -2 times -1).= 2

thus 72 will be the answer...