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Multiplication of 11 with any number. (You cant use this rule for other numbers) Let me explain this rule by taking examples 1) 234163*11 = 2---2+3---3+4---4+1---1+6---6+3---3 = 2575793 Means insert the sum of 2 successive digits and put 2 terminal digits in its place 2) 45345181*11 = 4---4+5---5+3---3+4---4+5---5+1---1+8---8+1---1 = 498796991


Multiplication of 11 with any number. (You cant use this rule for other numbers)  Let me explain this rule by taking examples


1) 234163*11 = 2---2+3---3+4---4+1---1+6---6+3---3 = 2575793 


Means insert the sum of 2 successive digits and put 2 terminal digits in its place


2) 45345181*11 = 4---4+5---5+3---3+4---4+5---5+1---1+8---8+1---1 = 498796991 


Grade:Upto college level

1 Answers

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