Subtracting 9s (Vertical)

This subtraction worksheet provides structured vertical practice subtracting 9 from teen numbers. Students compute each difference and record answers in clearly marked boxes, reinforcing correct digit alignment, written accuracy, and confidence with one of the most challenging subtraction fact families.

Instructional Objectives

• Skill Focus (Grades 1-2): Subtract 9 from teen numbers accurately using vertical subtraction.
• Conceptual Understanding (Grades 1-2): Recognize predictable number patterns that occur when subtracting 9 and connect them to efficient mental math strategies.
• Algebraic Reasoning (Grade 2): Apply counting-back and compensation strategies (subtract 10, add 1) to solve subtraction facts efficiently.
• Curriculum Alignment (Grades 1-2): Supports subtraction fact fluency, mental math development, place-value understanding, and operations and algebraic thinking standards.

The repeated vertical format helps students internalize subtraction patterns involving 9 while strengthening neat work habits and alignment skills. This focused practice builds automaticity and reduces reliance on counting aids.

Learning Benefits

• Builds fluency and confidence with subtraction facts involving 9
• Strengthens mental math and pattern recognition
• Reinforces accuracy through structured vertical computation
• Effective for independent practice, review, or intervention

This printable worksheet provides targeted, confidence-building practice that helps students master subtracting 9 from teen numbers while strengthening number sense and readiness for more advanced subtraction tasks.

This worksheet is part of our Subtract by 8s and 9s Worksheets collection.