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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.

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.

**MATH = LOVE RECOMMENDS…**

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?!?

## Free Download of Hidden Equation Puzzle

Hidden Equation 1 (PDF) (1215 downloads)

Hidden Equation 1 (Editable Publisher File ZIP) (468 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 sarah@mathequalslove.net with information about what you teach and where you teach. I will be happy to forward an answer key to you.

## More Number Puzzles

- Sixes Number Challenge
- Fives Challenge Puzzle
- 3-1-4 Pi Day Number Challenge
- Fours Challenge Puzzle
- 2023 Challenge: Yearly Number Challenge
- Threes Challenge
- Twos Challenge
- 10 Free Printable Math Challenges to Enjoy
- Twosday Challenge Activity
- Strimko Puzzles in the Classroom
- Rotated Square Puzzle
- Make 30 Puzzles
- Which Side of the Line Numbers Puzzle
- Simple Sums Puzzle
- Sums Puzzle
- Twenty Cubes Puzzle
- Number Strips Puzzle
- Pips Puzzle
- Triangle Sums Puzzle
- In a Row Puzzle
- Square Sudokus
- Magic Square 15 Puzzle
- Make It Pythagorean Puzzles
- Hidden Equation Puzzle 3
- Measurement Puzzlers
- Make Six Puzzle – Number Challenge
- Hidden Equation Puzzle 2
- See and Say Sequence Puzzle
- Pattern 15 and Pattern 30 Puzzles
- Sum to Twenty-One Puzzle
- Number Ball Puzzles by Naoki Inaba
- 9-10-11-12 Challenge
- Hidato Puzzles
- Plus Times Puzzles
- Three Numbers Puzzle
- Equation Puzzle
- Sum to Thirty Puzzle
- The Splice is Right Puzzle
- Up to Specs Puzzle
- Equation Rotation Puzzle
- Tic Tac Total Puzzle
- Only Takes and Adds Puzzle
- 20 x 9 Challenge
- Big Magic – A Printable Magic Square Puzzle
- TIGO Puzzles
- Step Puzzles by Naoki Inaba – A Logic Puzzle for Introducing Arithmetic Sequences
- Is it Possible Divisibility Puzzle
- Genius Blocks
- Nine Squares Puzzle
- Twelve Envelopes Puzzle
- Twos to Nines Challenges
- Factor Tree Puzzles Inspired by Dr. Harold Reiter
- Seven Times Seventy Puzzle
- Hidden Equation Puzzle 1
- Sum to Twenty Puzzle by Marcy Cook
- Maximize the Sum Puzzle
- Strimko Logic Puzzles Review
- Perfect Square Puzzle
- Post-It Note Puzzle
- How Far Can YOU Climb? – An Activity by Frank Tapson
- Angle Mazes by Naoki Inaba
- The 5-4-3-2-1 Challenge
- Japanese Logic Puzzles for the Secondary Math Classroom
- Area Maze Puzzles from Naoki Inaba
- KenKen In The Classroom
- Futoshiki Puzzles
- Petals Around the Rose
- Hashi Puzzles
- Shikaku Puzzles
- Nonogram Puzzles
- Four Fours Challenge Activity
- 31-derful Puzzle
- Digit Cells Puzzle

ElevenBottles

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.