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There's nothing you can do about it, either. You two brats will be in different grades next year. You'll never see each other in school anymore! You'll have different teachers, different classes… and different friends!
  —Anita Calculator [src]  

Miss Anita Calculator is one of the teachers at Jerome Horwitz Elementary School. She appears in the book Captain Underpants and the Tyrannical Retaliation of the Turbo Toilet 2000. Her name is a pun on the word "miscalculate" while her full name is a pun on the phrase "I need a calculator."