| |

Sums Puzzle

I was an instant fan of this Sums Puzzle when I discovered it in Puzzle Box, Volume 2. Place the number cards 1-99 into the grid, once each. A cell can contain no numbers, one number, or two numbers. Two numbers in a cell form a 2-digit number in that cell. The numbers outside the grid show the sums of numbers in the respective rows or columns. If a row or number has just a single number, then the respective number outside the grid shows that number alone.

Sums Puzzle

As I mentioned above, I found this sums puzzle from Hasan Yurtoglu in Puzzle Box, Volume 2 by Dover Publications. The Puzzle Box books (all 3 volumes) are probably my absolute favorite series of puzzle books. It was this series of puzzle books that convinced me I should be using puzzles in my classroom.

I printed the puzzle board on 11 x 17 cardstock. If you don’t have the ability to print on this size of paper, I have also uploaded a letter sized version at the bottom of this post.

Sums Puzzle

For example, you could place a 6 in one box and combine the 1 and 2 to make 12 in order to make the numbers in the first row sum to 18.

Sums Puzzle

Similarly, in the last column, you could create 12, 8, and 5 since they sum to 25. That’s the easy part. Now the tricky part of the puzzle is to use the provided digits to make all of the rows and columns sum to the correct values at the same time.

sums puzzle

Happy Puzzling!

Puzzle Solutions

Puzzle solutions are available on a password-protected solution page. I do not openly post the puzzle answer keys because one of my goals as a resource creator is to craft learning experiences for students that are non-google-able. I want teachers to be able to use these puzzles in their classrooms without the solutions being found easily on the Internet.

Please email me at sarah@mathequalslove.net for the password to the answer key database featuring all of my printable puzzles and math worksheets. I frequently have students emailing me for the answer key, so please specify in your email what school you teach at and what subjects you teach. If you do not provide these details, I will not be able to send you the password.

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, or as fun activities in their workplace. Just give me enough details so I know you are not a student looking for answers to the puzzle that was assigned as their homework!

Similar Posts