521.600:8=65.200
102.018:6=17.003
2.907*3*10+5.403=9.261
780*5*100-20.471=369.529
40.200:6=6.700
36.040:5=7.208
521.600:8=65.200
102.018:6=17.003
2.907*3*10+5.403=9.261
780*5*100-20.471=369.529
40.200:6=6.700
36.040:5=7.208