This interactive smartboard lesson provides practice adding three digits. Many slides provide problems that are set with 3 digits. Answers are also provided by a click of the button so activity can be self checking. The last slide has interactive dice which can provide unlimited use. Each time you click the dice you will have a different problem with three digits. All slides are linked for easy use. Can be used as review, remediation, or just practice in adding 3 digits. Created with Smart Notebook 11. My understanding is this can be used on Promethium Boards also by importing but I do not have access to a Promethium board so I am uncertain how this works. Great for grades 2-5 depending on the level of the students.