He had 6 crates and then gave out 2 so he now has 6-2 = <<6-2=4>>4 crates left
He bought an additional 5 crates for a total of 4+5 = <<4+5=9>>9 crates
Each crate has 30 eggs so he has 30*9 = <<30*9=270>>270 eggs
#### 270