1st Grade Addition Worksheets (Free & Printable)

First grade addition builds on kindergarten counting skills by expanding the number range to 1–20 while still keeping carrying turned off, matching how most 1st grade math programs sequence single-digit and low-double-digit addition before introducing regrouping. This generator produces horizontal addition problems sized for early writers, with a customizable problem count so you can create a quick 10-problem check-in or a full 30-problem practice sheet. Because the range tops out at 20, students get comfortable adding across the teen numbers — a common trouble spot — without the added complexity of carrying tens. Print a fresh worksheet for daily practice, timed drills, or homework, and use the built-in answer key to grade in seconds. When your child is ready for regrouping, move up to the 2nd grade addition with regrouping worksheets.