sbittle Profile Topics Started Replies Created Engagements Favorites Search topics: Topics Engaged In Viewing topic 1 (of 1 total) Topic Voices Posts Last Post Common addition and subtraction situations Started by: sbittle in: K–5 Counting and Cardinality & Operations and Algebraic Thinking 2 2 11 years, 11 months ago Cathy Kessel Viewing topic 1 (of 1 total)