20 engaging, differentiated worksheets that will help your students use several strategies to solve missing part word problems with numbers up to 19! On each worksheet, students will solve a word problem several ways: draw a picture, use a number line, use a number bond, count on with part/part/whole, show in ten frames, solve equations, and write the final answer! Also included: single and double ten frame mats, a part/part/whole mat, an addend/addend/sum mat, and a number bond mat. Print o