For this activity, the students solve 20 subtraction problems from powers of 10 (i.e. 100; 1,000; and 10,000). Then, they use their answers to color an MLK picture. The picture is the phrase "I have a dream." This is a great way to add MLK to your math lesson. Also, the coloring component motivates the students to get the correct answer!
MLK Math Coloring Picture - Subtracting from Powers of 10 by Briana Burke is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0