K.OA.1 Represent addition and subtraction
K.OA.2 Solve addition and subtraction word problems within 10
K.OA.3 Decompose numbers less than or equal to 10 into pairs in more than one way using objects
K.OA.4 For any number from 1-9, find the number that makes 10 when added to the given number
K.OA.5 Fluently add and subtract within 5