805*712+(245*10-2300)*834-501*604= 701*901-83200:208+(20000-18904)*99= *=помножити
805*712+(245*10-2300)*834-501*604=573160+(2450-2300)*834-302604= =573160+150*834-302604=573160+125100-302604=520756 701*901-83200:208+(20000-18904)*99=631601-400+1096*99= =631201+108504=739705