Horizontal Set D

This printable math worksheet is designed to help students in Grades 1 and 2 strengthen addition fact mastery, automaticity, and computation accuracy through consistent practice with +4 and +5 facts. Students solve 30 horizontal number sentences, reinforcing predictable addition patterns and building confidence with sums within 10, 15, and beyond.

Learning Goals

• Addition Fact Mastery (Grades 1-2)
  Develop strong recall of +4 and +5 facts through repeated, focused practice.
• Building Automaticity
  Increase speed and efficiency by internalizing common addition combinations.
• Strengthening Computation Accuracy
  Reinforce careful calculation while working at a fluent pace.
• Pattern-Based Fact Retrieval
  Help students recognize and use consistent number patterns to solve problems quickly.

Instructional Benefits

• Teacher-Created Resource
  Designed by educators to align with early elementary math standards.
• Balanced Practice Set
  Provides meaningful repetition without overwhelming learners.
• Horizontal, Student-Friendly Format
  Encourages mental computation and flexible thinking.
• Versatile Classroom Use
  Ideal for independent practice, warm-ups, math centers, homework, or review.

This Horizontal Set D worksheet helps students develop fluency, accuracy, mental math efficiency, and confidence with essential addition facts. Through repeated exposure to +4 and +5 patterns, learners build a strong foundation for multi-step arithmetic and future math success. Whether used in the classroom or at home, this no-prep worksheet offers effective, targeted fluency practice.

This worksheet is part of our Addition Facts With 4 and 5 Worksheets collection.