Fact Families - Addition and Subtraction {Fact House}This packet will allow you to print and make an activity card set (59 cards, each with 4 problems) to help your students create and solve 2 addition and 2 subtraction problems from a family of 3 numbers. You will need to laminate these cards before use with a dry-erase marker, alternatively have students record the fact family in their math journal.This packet also includes game cardsactivity instructionsa Quick Math Craft (write, color and cu