Horizontal 8 and 9 Addition

This printable math worksheet is designed to help students in Grades 1 and 2 strengthen addition fact fluency, mental math skills, number sense, and computational confidence through focused practice with +8 and +9 facts. All problems are presented in a horizontal format, encouraging students to compute mentally without relying on vertical alignment or written supports.

Learning Goals

• Mental Math Fluency (Grades 1-2)
  Build speed and accuracy when adding 8 and 9 to single-digit numbers.
• Horizontal Computation Skills
  Strengthen flexible thinking by solving equations without column alignment.
• Addition Facts Recall
  Improve automatic recall of +8 and +9 facts through repeated practice.
• Number Relationships & Patterns
  Help students notice patterns such as near doubles and tens-based strategies.

Instructional Benefits

• Teacher-Created Resource
  Designed by educators to align with early elementary math standards.
• Less-Scaffolded Format
  Encourages independence and confidence in mental computation.
• Fluency-Focused Design
  Ideal for timed drills, speed practice, or daily fact review.
• Flexible Classroom Use
  Suitable for warm-ups, independent practice, homework, math centers, or assessment.

This horizontal addition worksheet helps students develop fact mastery, mental computation efficiency, accuracy, and math confidence with +8 and +9 facts. By practicing in a streamlined format, learners strengthen the foundational skills needed for more advanced arithmetic and multi-digit addition. 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 Facts With 8 and 9 Worksheets collection.