Oct 7, 2020Christy Hanson10 Minute Lesson, 3rd grade, 4th grade, 5th grade, Educational Resources, Mathematics, Video3rd grade, 4th grade, 5th grade, problem solving, Spirit Lake How to Solve a Problem: Make it an Easier Problem Using the example of subtraction with three-digit numbers, this video shows how to solve a problem by making it into an easier problem.