Caleb has 3 dozen jellybeans.  Sophie has half as many jellybeans as Caleb.  How many jellybeans do they have in total?
Caleb has 3 x 12 = <<3*12=36>>36 jellybeans.
Sophie has 36 / 2 = <<36/2=18>>18 jellybeans.
Together, they have 36 + 18 = <<36+18=54>>54 jellybeans.
#### 54