The twenty-seventh JRMF Webinar took place on Saturday, October 3rd, 2020 from 11 am until 12:30 pm. This virtual event was organized by Dr. Hector Rosario, Director of Outreach and Festivals of the Julia Robinson Mathematics Festival (JRMF). Participants were divided in several breakout sessions, depending on whether they were kids or adults. Dr. Jeanette Shakalli, Executive Director of FUNDAPROMAT, acted as the co-moderator in one of the breakout sessions for adults.
On this twenty-seventh Webinar, participants explored the interesting math activity called “Adding Digits” which is used in Festivals all around the world. The game begins with some circles connected by straight lines creating different shapes. Some of the circles have fixed numbers while others are empty. This interactive activity consists of filling out each empty circle with a positive whole number (1, 2, 3, 4, 5…) following one simple rule that involves the sum of digits.