How fast can you recall special numbers?
If you're looking to win contests, speed is part of the challenge. You need to have certain basic facts memorized to allow yourself to think at a higher level to solve harder problems, and to just leave yourself time to even GET to those harder problems.
Here's a new online version of our "mastery" exercises. Use this to practice and demonstrate your mastery of facts such as square numbers and more.
Right now it's just square numbers, but we'll soon add triangular numbers, cubes, factorials and "chooses".
You can try each one as often as you want.
A timer starts once you enter your name, and ends when you click "submit".
Your fastest time will earn you mastery points which can improve your ranking for qualifying for Mathcounts, but you must demonstrate it once in person to confirm your best online score was done honestly.