Britney has 11*2=<<11*2=22>>22 Rhode Island Reds.
She has 6/2=<<6/2=3>>3 Golden Comets.
She has 22+3=<<22+3=25>>25 total.
Susie has 11+6=<<11+6=17>>17 total.
Britney has 25-17=<<25-17=8>>8 more.
#### 8