Math · Grades 1–2
Adding Three Numbers Worksheets
Printable addition worksheet for grades 1-2 focused on adding three numbers at a time. Students practice 12 horizontal three-addend facts and 8 stacked three-addend problems using make-a-ten, doubles, and known-fact strategies. Includes a complete answer key.
Adding Three Numbers Lessons and Resources
Worksheet · Grades 1–2
Adding Three Numbers Worksheet
Printable addition worksheet for grades 1-2 focused on adding three numbers at a time. Students practice 12 horizontal three-addend facts and 8 stacked three-addend problems using make-a-ten, doubles, and known-fact strategies. Includes a complete answer key.