Practice applying the divisibility rule for 9 with this fun and helpful division worksheet! Geared toward third- and fourth-grade math learners, this worksheet begins with a review of the rule that states that a number is divisible by 9 if the sum of its digits is divisible by 9. Students are also provided with an example and a non-example of this rule. Then, learners will get to apply the rule to a set of given numbers, ranging from two digits to five digits, circling all the numbers that are divisible by 9. Learning divisibility rules is a great way to help learners build number sense and confidence when working with larger numbers. Keep going with the Divisibility Rules: Dividing by 10 worksheet next!