Заполни пропуски

Сложи числа, применяя законы сложения:

а) \({199+57+1 \mathrlap{\,=}}\) \({= (199+1)+57 \mathrlap{\,=}}\) \({= 200+57\mathrlap{\,=}}\) \({ = 257}\) ;

б) \(308+57+43=\) [ ];

в) \(415+72+85=\) [ ];

г) \({321+(39+18) \mathrlap{\,=}}\) \({= (321+39)+18\mathrlap{\,=}}\) \({ = 360+18 \mathrlap{\,=}}\) \({= 378}\) ;

д) \((88+87)+113=\) [ ];

е) \(36+(164+79)=\) [ ].