Knowing divisibility rules can improve the accuracy and efficiency of student work. In 5th and 6th grade math, students need to perform long division, reduce fractions or find a common factor as a daily practice, and knowing divisibility rules will accelerate the process for students. Students can keep the Divisibility Rules in their math folders and/or can be posted to Google Classrooms for student reference. I find students rely heavily on this reference at the beginning of the year and gra