Addition? That may be a little to advanced for the little potty pants. After all, there's a reason that they never graduated preschool. Personally, I think that the teacher should at least teach them to count to 10 before trying to get them to add numbers together!
Oh well. At least they have a pretty good grasp of their ABC's. Maybe they can try numbers again after getting a better grasp of potty training.
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Some great art by the wonderful Dairycow! There is something so button pressing about being to little to grasp kindergarten level lessons! X3