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This 577 = 11111 Puzzle asks you to arrange the numbers 5, 7, and 7 to make a shape. Then, you are tasked to make an identical shape using the numbers 1, 1, 1, 1, and 1.
This creative puzzle was created by Erich Friedman and shared in Puzzle Box, Volume 1.
Have you noticed my typo in the instructions? I didn’t realize it until I started writing this post. Don’t worry. I have fixed it in the downloadable file below.
This puzzle turned out to not be quite as tricky as the Ducks and Snakes puzzle by Erich Friedman.
Free Download of 577 = 11111 Puzzle
577 = 11111 Puzzle (PDF) (1632 downloads)
577 = 11111 Puzzle (Editable Publisher File ZIP) (432 downloads)
Want more puzzles? Check out my puzzles page!
I intentionally do not make answers to the printable math puzzles I share on my blog available online because I strive to provide learning experiences for my students that are non-google-able. I would like other teachers to be able to use these puzzles in their classrooms as well without the solutions being easily found on the Internet.
However, I do recognize that us teachers are busy people and sometimes need to quickly reference an answer key to see if a student has solved a puzzle correctly or to see if they have interpreted the instructions properly.
If you are a teacher who is using these puzzles in your classroom, please send me an email at email@example.com with information about what you teach and where you teach. I will be happy to forward an answer key to you.