Dividing by 3 means sharing a number into three equal groups and counting how many land in each group. This 3rd grade divide by 3 worksheet gives six numbers from 9 to 33, labeled a to f. For each one, your child writes the quotient on the line. Then the long division goes in the grid below it, and none of the six has a remainder. Because every number is a multiple of 3, the answers come straight from the division facts. In the corner, a boy kicks a soccer ball, as on the pages for dividing by 1 and by 2. The second page is an answer key with every long division worked out.