2_Digit Addition (No Regrouping). The addition worksheets on this page have no regrouping or carrying. Approx. levels: 1st grade, 2nd grade.
4 and 5_Digit Addition. This page has resources for teaching addition with 4 and 5_digit numbers. Includes column addition exercises, an addition crossword, and word problems. (Approx. level: 3rd grade, 4th grade, 5th grade).