6,89*10 = 6,89*100 = 6,89*1000= 6,89*10 000= 6,89*0,1= 6,89*0,01=
6,89*10=68,9 6,89*100=689 6,89*1000=6890 6,89*10 000=68900 6,89*0,1=0,689 6,89*0,01=0,0689