Digits of Pi Hidden Number Puzzle
This fun hidden number puzzle involves finding the first 11 digits of pi in a grid of numbers. It would be a perfect addition to your Pi Day festivities!

What are Hidden Number Puzzles?
Hidden Number Puzzles are puzzles made up of a grid of circles connected by lines. You must find and mark the specified number in the puzzle by tracing out its path along the lines. A circle may only be used one time.
These puzzles are a fun twist on my hidden word puzzles. Here’s a sample hidden word puzzle where “Math Equals Love” is hidden in the grid. It’s not made up of numbers, but it should still give you an idea of how the puzzle works!
These puzzles are sometimes known as spider web puzzles.
Digits of Pi Hidden Number Puzzle Instructions
Find and mark the first 11 digits of pi (3.1415926535…) in the hidden number grid. The path of the number must follow along the lines of the grid. You may not use any circle more than once.
Free Download of Digits of Pi Hidden Number Puzzle
This free printable digits of pi puzzle is available to download as a PDF or as an editable PowerPoint file.
Click here to Download
Digits of Pi Hidden Number Puzzle (PDF)
282 downloads – 291.08 KB
PowerPoint (in Zip Folder)
Click here to Download
Digits of Pi Hidden Number Puzzle (PPT in ZIP)
24 downloads – 672.08 KB
Puzzle Solutions
I intentionally do not make answers to the printable puzzles and math activities 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 sarah@mathequalslove.net with information about what you teach and where you teach. I will be happy to forward an answer key to you.
Not a teacher? Go ahead and send me an email as well. Just let me know what you are using the puzzles for. I am continually in awe of how many people are using these puzzles with scouting groups, with senior adults battling dementia, as fun activities in their workplace, or as a birthday party escape room.