This is a great reasoning task for grades K-3.
From Alicia Burdess’s 2nd Grade Curriculum (starting on page 17)
Split Twenty-Five!
Take the n
umber 25 and break it into as many pieces as you like! What is the biggest product you can make when combining the pieces? What is the smallest?
Extension: What if you could use decimals or fractions? Negative numbers?
*Grades 6-8
Dotty Sixes
Here is a great game to play that promotes ideas around number flexibility, addition, and reasoning. It’s Tic-Tac-Toe meets dice!
Visit NRich Math for more fun and engaging math games and ideas!