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The purpose is getting the result fast. Example: Compute 47·53. Answer: 502 = 2500, 32 = 9. Therefore 47·53 = 2500 - 9 = 2491.

The purpose is getting the result fast. Example: Compute 47·53. Answer: 502 = 2500, 32 = 9. Therefore 47·53 = 2500 - 9 = 2491.

Grade:12

1 Answers

Sourabh Singh IIT Patna
askIITians Faculty 2104 Points
7 years ago
Hii

Thanks for the info but I was expecting a question. Post questions and we will help you out.


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