Extend concepts of putting together and taking apart to add and subtract within 10.
Standard:
K.OA.A.3
Description:
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).
Standard:
K.2.I
Description:
compose and decompose numbers up to 10 with objects and pictures.