FREE 1st Grade Printable Math Worksheets & First Grade Mad Minutes! Help your first grader get the math practice they need to achieve fluency with addition and subtraction by using these super cute, free printable, 1st grade math worksheets. These first grade math worksheets are a great way for grade 1 students to have fun practicing math with Mad Minutes Math Game. Simply print 1st grade worksheets pdf file and you are ready to practice with math worksheets ...