Б)5,6×3,8+5,6×1,6+2,7×4,6+2,9×4,6
Б)5,6×3,8+5,6×1,6+2,7×4,6+2,9×4,6=
=21,28+8,96+12,42+13,34=
=21,28+12,42+8,96+13,34=33,7+22,3=56