7,6·10^–2+5,4·10^–1
7,6·10–2+5,4·10–1 =10–2·(7,6+5,4·10)= =0,01·(7,6+54)=0,01·61,6=0,616
7,6·10–2+5,4·10–1 = = 7,6·10–2+54·10–2 = = (7,6+54)·10–2 = = 61,6·10–2 = = 0,616