This 1st grade math resource is all about numbers and operations in base ten for 1st grade. Through engaging activities, students will learn basic number relationships, counting, cardinality, place value, subitizing, composing and decomposing numbers to 20, addition, subtraction and the all important number sense. This jam-packed pack includes games, worksheets, teaching tools, answer guide, select editable pages, and assessments for 1. N.B.T., 1 through 6. It could supplement your math progra