Bob and Jim decide to skip rocks.  Bob can skip a rock 12 times.  Jim can skip a rock 15 times.  If they each skipped 10 rocks how many total skips did they get?
Bob got 12*10=<<12*10=120>>120 skips
Jim got 15*10=<<15*10=150>>150 skips
So in total they got 120+150=<<120+150=270>>270 skips
#### 270