Basic Horizontal Addition

This printable math worksheet is designed to help students in Grades 1 and 2 strengthen addition fluency, mental math reasoning, number sense, and computational speed through practice with horizontal equations. Students solve thirty single-digit addition problems presented in a less-scaffolded format, encouraging flexible thinking and quick recall of facts within 20.

Learning Goals

• Addition Within 20 (Grades 1-2)
  Build accuracy and confidence with core single-digit addition facts.
• Mental Math Reasoning
  Encourage students to compute sums mentally without relying on vertical alignment.
• Number Patterns & Relationships
  Reinforce recognition of common fact families, doubles, and number combinations.
• Fast Computation Skills
  Develop speed and efficiency through repeated, focused practice.

Instructional Benefits

• Teacher-Created Resource
  Designed by educators to align with early elementary math standards.
• Horizontal Problem Format
  Supports flexible strategies and independent problem solving.
• Balanced Practice Set
  Thirty problems provide meaningful repetition without overwhelming students.
• Flexible Classroom Use
  Ideal for warm-ups, quick assessments, independent practice, review, or math centers.

This basic horizontal addition worksheet helps students develop mental computation, fact fluency, number relationships, accuracy, and math confidence. Through consistent practice in a streamlined format, learners build the foundational skills needed for more advanced arithmetic. Whether used in a classroom or homeschool setting, this no-prep worksheet provides effective fluency practice that supports long-term success in mathematics.

This worksheet is part of our Addition Mad Minute Worksheets collection.