PARAM Mathematics Classes'
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10/07/2016
13*19 = (13+9)*10 + (3*9) = 220 + 27 = 247
Means add first number and last digit of the second number take zero in the third place of this number then add product of last digit of the two numbers in it. This is the method of multiplying any two digit no from 11 to19
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PARAM MATHEMATICS Classes Phase 3a, House No 549
Mohali
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