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National Number Knockout

Interested in Playing?

Interested students and parents must familiarize themselves with the rule book. For more information download the free 2019 Rule Book. For more information about submitting a Scouting Video, please visit our National Number Knockout Scouting page.

What is National Number Knockout?

National Number Knockout is a nationwide math competition for students, ages 10-14, that culminates in a national championship for 16 finalists on a cruise and a chance to win $10,000. Students interested in entering the National Number Knockout competition must submit a scouting video by February 24th. This year’s Scouting Board will be announced to Prime Advantage members on February 1st and to the general public on February 8th. Prime Advantage membership can be purchased until January 31st. For complete rules on how to submit a video and enter the 2018 National Number Knockout contest, please visit the Scouting Videos page on the main National Number Knockout website.

How Is Number Knockout Played?

Number Knockout is played on a six by six grid of numbers. The classic Number Knockout board contains the numerals 1 to 36. However, the game can be played on a wide variety of boards, and players are encouraged to make their very own boards using a creative selection of numbers and patterns for practice. Number Knockout can be played with many different variations to make the game easier or harder. Because it is so easy to modify the game for a variety of players, it is perfect for students of all ages. For a short video tutorial on how to play, please visit the How to Play page on the main National Number Knockout website.

How Does the Competition Work?

Students between the ages of 10 and 14, who excel at Number Knockout, have a chance to enter the National Number Knockout competition, which takes place each spring on a cruise ship. Students submit a scouting video. Winning students receive airfare and a cruise for themselves and one parent. In addition, the hard-working winner of the competition will also receive the grand prize, which is a $10,000 cash award. While Number Knockout is currently played by students enrolled in Classical Conversation’s Essentials program, the competition is open to any and all eligible students. For more information about the competition and eligibility, please visit the Competition Details page on the main National Number Knockout website.

Prime Advantage Now Available

Brand new! Prime 2 & 3 Members will now receive a new board each month until May 2019.

Want early access to the 2019 N2K Scouting Board? Looking for a fun way to shake up your math practice? The National Number Knockout Prime Advantage program is designed to give your family everything they need in order to improve their basic math skills. For those ready to take it to the next level, the Prime Advantage program will help your student improve their N2K Competition skills. In each pack, you will find math tips from N2K Competitors and their parents, resources used in the Classical Conversations Essentials Program and additional practice boards.

The Prime Advantage 1 program is designed for casual players who wants to improve. The Prime Advantage 2 program is designed for those who want to dig deeper, and the Prime Advantage 3 program is designed for those students intent upon winning the competition. For more details about what is available in each pack, please click on the different Prime Advantage packs listed above.

We believe that with practice, your student, will be able to use these tools to become a confident and competent problem solver, and we are confident that this year’s packet will give your student the “Prime Advantage.”

We are proud to announce the winner of the 2018 National Number Knockout Competition!

John DiPiazza

2018 National Number Knockout Winner


View top 16 Finalists

A Game on a Mission

Number Knockout is a fast-paced, mental math game with a mission to “Knockout Innumeracy.” While many people are aware that illiteracy is detrimental to our society, few people contemplate the long-term effects of innumeracy. According to the 2015 PISA findings, which measures math, science, and reading scores worldwide, the U.S. now ranks 31st among 35 industrialized countries in math proficiency (Barshay, The Hechinger Report). The continuing slide in numeracy skills is concerning for a country that prides itself on our ability to innovate and lead, but Number Knockout is seeking to improve math education in this country by teaching students how to play an easy to learn and highly addictive game.

In addition to knocking out innumeracy by improving students’ mental math abilities, students playing Number Knockout practice speaking and listening to equations. This teaches students innumerable skills beyond mathematics such as accurately speaking the truth, carefully listening for the truth, and graciously defending the truth.


Barshay, Jill. “U.S. Now Ranks Near the Bottom Among 35 Industrialized Nations in Math.” The Hechenger Report, Accessed October 5, 2017.