1.3E TEKS Math Task Cards:These 24 Task Cards are aligned with TEKS Standard 1.3E Strategies for Addition and Subtraction. This product offers a differentiated variety of questions for all facets of instruction: introduction, practice, and assessment. The following standard is covered:1.3E Explain strategies used to solve addition and subtraction problems up to 20 using spoken words, objects, pictorial models, and number sentences. Answer keys are included. Looking for more 1st grade TEKS res