Addition & Subtraction Word Problems within 20 for Grade 1–2. Includes 2‑addend and 3‑addend problems, 20 worksheets (color + BW), and 10 answer keys. Students solve addition and subtraction within 20 using multiple visual strategies, making the resource perfect for differentiation and conceptual understanding. Each worksheet guides students through a complete problem‑solving routine using multiple visual strategies: Draw a pictureUse ten framesUse a number lineWrite an equationWrite the final