136.(-47)+36.(-304)
=136.(-36)+136.(-11)+36.(-304)
=(-136).36+136.(-11)+36.(-304)
=36.[-136+(-304)]+136.(-11)
=36.(-440)+136.(-11)
=(-15840)+(-1496)
=(-17336)
136 . ( - 47 ) + 36 . ( - 304 ) = 100 . ( - 47 ) + 36 . ( - 47 ) + 36 . ( - 304 )
= - 4700 - 36 . ( 47 + 304 )
= - 4700 - 36 . 351
= - 4700 - 12636
= -17336