Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or drawings, and record each decomposition by a drawing or equation (e.g., 5 = 2 + 3 and 5 = 4 + 1).
Recent CCSS.Math.Content.K.OA.A.3 Lesson Plans & Resources
Foundations for Addition and Subtraction Within 20
Lesson Plan | Grades K-2
Assessment: Add, subtract, place value, comparison
Assessment | Grades K-2