This addition Math Mystery, the Case of the Funny Farm, will engage and motivate your students to practice their addition skills (within 20). This 5 W's Format Mystery does not require an elimination process, instead, students solve a piece of the puzzle in each clue to discover the who, where, when, what and why in their investigation of the case. Students will need to cut out the picture answer on their clue sheet and paste to their Mystery Case file until all five have been completed. Easy p