Skill Builders! 1St Grade Addition & Subtraction, Homeschool Curriculum, First Grade Learning Games, First Grade Learning Materials,Back To School, 109 Pieces, Age 6+Play your way to classroom ready early math skills! Set your kids on the path to elementary school success with the fun, quick first grade learning materials found in the Skill Builders! 1st Grade Addition & Subtraction activity set from Learning Resources. This 109 piece set comes with all the hands on activities and first grade learning games needed to help kids learn and retain early math skills; build hands on number recognition with 30 included