This bundle includes all my Addition, Subtraction, Multiplication and Division strategy postersStrategies included are:Addition and Subtraction:Pictures, Counting On, Counting Back, Friends of Ten, Adding 9, Number Line, Doubles, Near Doubles, Partitioning, Vertical Addition, Vertical Subtraction, Vertical Addition with Regrouping, Vertical Subtraction with RegroupingMultiplication and Division:Equal Groups, Arrays, Repeated Addition, Repeated Subtraction, Commutativity, Fact Family, Skip Counti