Editors William Bober and John Percevault
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Goober Ghost and Benny the Bat
Editors William Bober and John Percevault
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Tigger the Tiger
Editors William Bober and John Percevault
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Ricky and Robby Raccoon
Editors William Bober and John Percevault
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The Cookie Monsters
Editors William Bober and John Percevault
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Operations
Editors William Bober and John Percevault
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Numeration
Editors William Bober and John Percevault
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Place Value
Editors William Bober and John Percevault
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Expanded Notation
Editors William Bober and John Percevault
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Feeding Mr. and Mrs. Jaws
Editors William Bober and John Percevault