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Hidden Equation Puzzle 1

This school week was super-short due to the Oklahoma Teacher Walk-Out, but I still managed to put out a new puzzle on the puzzle table. The goal of the hidden equation puzzle is to circle one symbol from each column so that a true mathematical statement results.

Hidden Equation Puzzle

I placed the puzzle in a dry erase pocket so that students could easily erase their solution after finding it so as not to give the solution away to future classes. 


dry erase pockets

I cannot imagine teaching math without my dry erase pockets! They instantly make any activity more engaging and save me countless hours at the copy machine since I can use the same class sets of copies year after year.

Here are my current go-to recommendations:

If you don’t have a classroom set of dry erase pockets, you could also use heavy duty sheet protectors. But, I highly recommend investing in a classroom set of the pockets since they are so much more durable.

This hidden equation puzzle was found in Puzzle Box, Volume 3 by Dover Publications. This specific puzzle was written by Erich Friedman.

If you haven’t check out this awesome series of puzzle books? What are you waiting for?!?

Hidden Equation Puzzle in Dry Erase Pocket.

Free Download of Hidden Equation Puzzle

Hidden Equation 1 (PDF) (1489 downloads )

Hidden Equation 1 (Editable Publisher File ZIP) (703 downloads )

Want even more puzzles? Check out the new puzzle tab at the top of my blog.

Puzzle Solutions

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 with information about what you teach and where you teach. I will be happy to forward an answer key to you.

More Number Puzzles


Sunday 15th of April 2018

I'm a little confused here. I assumed the big dots were decimal points, but am now wondering if they are multiplication operators. Could you please enlighten me? Thanks

Sarah Carter (@mathequalslove)

Sunday 15th of April 2018

They are supposed to be multiplication dots. The original puzzle (as written in the book I got it from) had x's for multiplication, but I was afraid that my students would think of them as a variable since I teach Algebra 1.

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