ArgoPrep's add 3 single digit number worksheets for grade-one students will have them adding numbers like a pro in no time! Building on previous lessons students have completed, students will have the chance to practice adding three numbers, such as 2+3+1 or 5+3+2. These free and easily downloadable worksheets are great for students to be able to practice and show what they know! ArgoPrep's worksheets are just what is needed for grade one students who are growing in their addition skills.