S:1 E:7
Intermediate
Rick realizes that he needs to send the sheep to Reya’s pen. He sends them a few at a time, and calculates the remaining sheep. Eventually, all the sheep are at Reya’s pen. Reya asks the sheep what they want to do, and based on that, she lets them out. Some of them end up playing volleyball, some graze, and some quench their thirst, in the process, we learn subtraction.