(1.1*10^-1)*(3*20^-2)
Решение: (1,1*10^-1)*(3*20^-20)=(1,1/10)*(3/20^2)=1,1*3/(10*20^2)=3,3/(10*400)=3,3/4000=3 3/10 : 4000=33/10 : 4000=33/(10*4000)=33/40000