Numberless word problems help build students' conceptual understanding of the problems. These addition word problems with sums to 20 are perfect for 1st or 2nd grade students. This bundle includes 3 lessons: start unknown, change unknown, and result unknown. For each lesson, there is a whole class interactive Google Slides lesson that takes students through each problem step by step, student practice pages, an assessment, and more.What's Included: 3 resources for teaching numberless word problem