Review the 4 operations with this Presidents' Day mystery picture bundle containing unique pictures of George Washington, Abraham Lincoln, Barack Obama, and Joe Biden.BONUS CONTENT:- Print and cut collectible versions of the picture.- Editable "biography / all about" worksheets for your students to glue the collectible picture onto and answer your questions. Use the mystery picture as a fun introduction leading to the "all about" activity.This bundle is aligned to the Common Core standards.Excep