Answers

2014-08-19T12:17:42+05:30
We know that 131×10 = 1310
therefore 131×11 = 131×10+131 = 1441
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2014-08-19T12:32:15+05:30
131x11=131x10+131x1

131x111=131x100+131x10+131x1
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