This set of 20 missing addend word problems (or missing part word problems!) reflects vital problem solving standards for grades 2 and 3. Problems ask students to decide whether or not to add or subtract and have the "missing addends" in various places in the problem. (Ex. 45 + __ = 74) Problems are included in FOUR formats:with multiple copies on a page to be cut out and glued into a math journalon reproducible pages to use as practice sheets (2 problems per page)on full sheet pages that giv