19a. Give reasons for each of the following steps:
56*10= (5*10+6)*10
=(5*10)*10+6*10
=5*(10*10)+6*10
=5*10^2+6*10
=5*10^2+6*10+0*1
=560
19a. Give reasons for each of the following steps:
56*10= (5*10+6)*10
=(5*10)*10+6*10
=5*(10*10)+6*10
=5*10^2+6*10
=5*10^2+6*10+0*1
=560
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