5th grade math pdf - r23.it Download free 1st grade math worksheets in PDF. Grade Range: Kindergarten - 12. 5 4 9×15 C. strengthen math skills and to become an independent thinker and problem solver. 52 MB (Last Modified on January 22, 2019) Comments (-1) Home. Worksheets cover the following addition topics: Introduction to addition, addition with pictures, addition ...