I’m always on the look-out for games that are engaging for students and that promote computational fluency, so I was super excited to try out Sum of Which: A Game of Numbers and Strategy. The game’s creator, Becky Duprey, sent me a copy of her Sum of Which is Ten Junior game to try in my classroom. My kids gave it a big thumbs up

The goal of the game is to combine numbered tiles to make ten on a crossword-like board. Because our number system is based on the number ten, making ten is an essential skill for young mathematicians. In playing the game, students experience many different ways to compose ten. Just two examples that would work are 3 + 3 + 3 + 1 and 6 + 2 + 1 + 1. Players earn extra points for using more tiles and for placing tiles on specially marked spaces. While the game was created for teachers to use with young children in the classroom, the twist of strategy makes it appealing to “kids” of all ages, and it’s perfect for a family game night.

The demand for Sum of Which is really keeping Becky busy! She recently introduced a new version of the game that features a traditional playing board, with tiles for playing a fraction game (Sum of Which is One) and the original tiles for Sum of Which is Ten. She also has a SMART Board version so you can play whole class and an app is in the works.

Are you ready to try it out for yourself? Of course you are!

This will be a great game to play to get the ball rolling for learning strategies to get to the friendly number of ten. The best part is that the idea could be modified using lesser sums or greater sums. Once the students understand the basic rules and strategies the will be sold on trying other “versions” or sums. You could also take it to another level with students finding differences or balanced equations.

OH MY GOSH!!! I absolutely love this game idea!!! I would use it to engage critical thinking skills in whole group, small group and math stations. Even change it up for kids to add to different sums or subtract to reach a designated difference. You could even use it to skip count. The possibilities are just swimming through my head!!

I am always on the hunt for engaging games that reinforce match concepts. I have found that ways to make 10 is something my intervention students often struggle with!

A strong foundation of number sense in the early years is crucial to developing mathematical understanding. Playing a new game to strengthen those skills would be so fun for students!

My students love games, and a game that will help them solidify their 10 facts would make me as their teacher happy, and they’d have fun in the process. It’s a win win!

This looks super fun and I love the idea that they are using more than just two addends to make 10. It is so important than my kiddos see the flexibility of numbers and many ways they can be composed and decomposed.

I am a math coach and would love to introduce all of my primary classrooms to “The Sum of Which is Ten”. It sounds incredible.I’m always looking for more ways to practice making that all important number 10! I’m intrigued by the fraction version too!

When you buy SUM OF WHICH Sr, you get both the SUM OF WHICH IS TEN and SUM OF WHICH IS ONE (fractions). You also get directions for another game you can play, SO YOU THINK YOU CAN ADD. You can play it with the tiles that come with SUM OF WHICH. I also send a SMART Notebook file so you can play it in your classroom. I played this with a second, third and fourth grade class yesterday and in all classes, the students were all VERY engaged. They were jumping out of their seats with ways to make ten!

I am also presently working on SUM OF WHICH IS TWENTY, SUM OF WHICH IS 100, another fraction version and a decimal version as well as an integer version. The best thing is, the game board is the same for all versions…only the tile set changes. So, you will be able to buy just the tiles once you have the game board. (Senior version) The only difference inthe Jr and Sr version is that the Sr version has 2 more rows and 2 more columns, making the game play last longer and making it possible for more players to play at one time. It is also printed on a board, not the bag. However, the entire game is still housed in a bag.

Would love to have this for use with my first graders! I saw in a comment that any target number can be used! Also read that it can be played as solitaire! LOVE that it can be used in many different ways!

I am a math addict as well!! I am an instructional coach and would love to share this with our teachers as well as play it with my son! Have you ever played the magic making ten card game?

The fraction version is a great deal of fun. The tiles come in cardboard housing. I cut the housing into 2 by 8 arrays so I can use it as a guide for students to add the halves, fourths, eighths, and sixteenths. I will also have another fraction version, a decimal version and an integer version out in the future, as well as SUM OF WHICH is 20 and SUM OF WHICH is 100.

This game looks amazing! I would use this with my grade 2’s. I love how it develops the strategy of making 10 facts, but also brings in addition of 2 digit numbers.

That is because it is fairly new. The first version only became available in late December. It is very fun. When I shared it at an Expo lately, I had children flocking to the table and playing for more than 30 minutes at a time. I had to keep sending them away to check in with their parents. They would check in and come right back for more game play! One child played solitare. She wanted and needed nobody to play against. SHE WAS 5!!

This is true. I also include directions for another game that can be played wit the tiles you have from the game. The second game is called, “SO YOU THINK YOU CAN ADD”. Children play both for hours and voluntarily. THEY pick it out as the activity of choice during free time!

This site uses cookies to store information on your computer. Some are essential to make our site work. Others help us improve your user experience or to allow us to track behavior and user patterns. By using the site you agree to these terms. View the terms here.

I teach Title I students–grade 1 through grade 4. I can see this helping them learn all the different ways to make 10.

I teach Title 1– students 1st grade through 4th grade. I can see this helping them making computations to 10. They struggle with this concept.

I would use Sum of Which to help my 1st grade intervention students with composing/decomposing 10.

This looks like a lot of fun and a great way to build number sense.

I would love to use this with my intervention groups!

My students would love this game!!!

My firsties would love this game. I love that it encourages multiple ways to make 10.

This will be a great game to play to get the ball rolling for learning strategies to get to the friendly number of ten. The best part is that the idea could be modified using lesser sums or greater sums. Once the students understand the basic rules and strategies the will be sold on trying other “versions” or sums. You could also take it to another level with students finding differences or balanced equations.

This is so cool! It would be a hit during guided math as part of my fact fluency center!

What a great idea! I think this would be the most sought after game in my math centers …. would love to try this out!

OH MY GOSH!!! I absolutely love this game idea!!! I would use it to engage critical thinking skills in whole group, small group and math stations. Even change it up for kids to add to different sums or subtract to reach a designated difference. You could even use it to skip count. The possibilities are just swimming through my head!!

Not only can I use this with my students…I want to try it with my grandchildren also!

I am always on the hunt for engaging games that reinforce match concepts. I have found that ways to make 10 is something my intervention students often struggle with!

This would be great with my learners that are struggling with addition. It would be great to see one for multiplication too.

My kids love games to practice math skills. I would certainly use this for teaching number sense and in small groups with my class!

Wow.. Looks like a great game. I would love to use this with my students.

I use games everyday in Maths and there are so many benefits. This would be a wonderful addition!

This game looks amazing! I try to incorporate games whenever possible in my 2nd grade classroom and I can see this one being a big hit!!!

Sounds like a great way to practice math fluency. I have a 2nd grader that needs this. The fraction version looks interesting as well. I teach 4th.

This would be a great game for my students! I’m always on the lookout for something new…this is perfect!

I would use this with many of my kids in K-3 as a Title Math teacher. I am always searching for ways to reinforce computational fluency.

A strong foundation of number sense in the early years is crucial to developing mathematical understanding. Playing a new game to strengthen those skills would be so fun for students!

My students love games, and a game that will help them solidify their 10 facts would make me as their teacher happy, and they’d have fun in the process. It’s a win win!

Kids will love this game while learning an important math strategy.

This would be an amazing tool in the classroom 🙂

This game looks like my kids would love it.

This game looks fun and educational. Awesome.

This game looks amazing. Where can we get one?

Here is the link: http://sumofwhich.com/index.html

This looks super fun and I love the idea that they are using more than just two addends to make 10. It is so important than my kiddos see the flexibility of numbers and many ways they can be composed and decomposed.

I am a math coach and would love to introduce all of my primary classrooms to “The Sum of Which is Ten”. It sounds incredible.I’m always looking for more ways to practice making that all important number 10! I’m intrigued by the fraction version too!

When you buy SUM OF WHICH Sr, you get both the SUM OF WHICH IS TEN and SUM OF WHICH IS ONE (fractions). You also get directions for another game you can play, SO YOU THINK YOU CAN ADD. You can play it with the tiles that come with SUM OF WHICH. I also send a SMART Notebook file so you can play it in your classroom. I played this with a second, third and fourth grade class yesterday and in all classes, the students were all VERY engaged. They were jumping out of their seats with ways to make ten!

I am also presently working on SUM OF WHICH IS TWENTY, SUM OF WHICH IS 100, another fraction version and a decimal version as well as an integer version. The best thing is, the game board is the same for all versions…only the tile set changes. So, you will be able to buy just the tiles once you have the game board. (Senior version) The only difference inthe Jr and Sr version is that the Sr version has 2 more rows and 2 more columns, making the game play last longer and making it possible for more players to play at one time. It is also printed on a board, not the bag. However, the entire game is still housed in a bag.

Will be watching the availability. Looks like great games and love that fractions will be included.

Where can you purchase this game? I need this for my first graders!

This would definitely help out my kiddos!!!!

This looks like the perfect companion to any number sense study! I might even purchase for my sons’ teachers as end of the year gifts! 🙂

I would love to try this with my first graders. I love promoting number sense.

I would love to use this game during my math rotations for math with someone!

Fact Fluency is so important and games are a great way to practice.

Would love to have this for use with my first graders! I saw in a comment that any target number can be used! Also read that it can be played as solitaire! LOVE that it can be used in many different ways!

I would love to try this game with students!

This really looks like a game my students would love. The challenge is exactly what they need.

I am a math addict as well!! I am an instructional coach and would love to share this with our teachers as well as play it with my son! Have you ever played the magic making ten card game?

What a great concept! The fraction version sounds interesting, too.

The fraction version is a great deal of fun. The tiles come in cardboard housing. I cut the housing into 2 by 8 arrays so I can use it as a guide for students to add the halves, fourths, eighths, and sixteenths. I will also have another fraction version, a decimal version and an integer version out in the future, as well as SUM OF WHICH is 20 and SUM OF WHICH is 100.

What a great concept! I’m always looking for fun resources for my Intervention kids!

This would be great in one of my math stations!! Love this game.

This game looks amazing! I would use this with my grade 2’s. I love how it develops the strategy of making 10 facts, but also brings in addition of 2 digit numbers.

Yes, and the score card helps to organize that addition of the 2-digit numbers.

Would love to use this as one of my morning tub activities.

This would be a great center activity. Can you only use ten or can you use other target numbers?

You can use any target number. Just remove that number and all numbers larger than that number and play.

I would love to try this!!

As a first year Instructional Coach, this would be a great resource to share with my teachers!

This games looks amazing. Can’t believe I haven’t heard of it before.

That is because it is fairly new. The first version only became available in late December. It is very fun. When I shared it at an Expo lately, I had children flocking to the table and playing for more than 30 minutes at a time. I had to keep sending them away to check in with their parents. They would check in and come right back for more game play! One child played solitare. She wanted and needed nobody to play against. SHE WAS 5!!

I’m a math coach amd would love to try this out with my primary classes!

I’d love this and so would my kiddos. It would be great to reinforces making 10. They would play and not even realize they are learning!!!

This is true. I also include directions for another game that can be played wit the tiles you have from the game. The second game is called, “SO YOU THINK YOU CAN ADD”. Children play both for hours and voluntarily. THEY pick it out as the activity of choice during free time!

I would love to use this to help my kiddos with number sense and fluency!