Subtracting Twenties

This subtraction worksheet gives students focused practice subtracting 20 from a variety of two-digit numbers using a horizontal format. Learners rely on place-value reasoning to reduce numbers by two tens, strengthening mental math fluency and confidence with larger numerical changes.

Instructional Objectives

• Skill Focus (Grades 2-3): Subtract 20 from two-digit numbers accurately using mental math strategies.
• Conceptual Understanding (Grades 2-3): Understand how subtracting two tens affects the overall value of a number while keeping the ones place unchanged.
• Algebraic Reasoning (Grade 3): Recognize and apply number patterns associated with subtracting multiples of twenty.
• Curriculum Alignment (Grades 2-3): Supports subtraction with multiples of twenty, place-value understanding, mental math fluency, and number pattern recognition standards.

The horizontal layout encourages students to think flexibly about numbers rather than rely on written algorithms. Repeated exposure to this structure helps learners internalize predictable patterns and perform subtraction more efficiently.

Learning Benefits

• Builds fluency with subtracting multiples of twenty
• Reinforces strong understanding of tens structure
• Encourages quick, confident mental computation
• Effective for warm-ups, independent practice, or skill reinforcement

This printable worksheet provides clear, confidence-building practice that helps students master subtracting 20 from two-digit numbers while strengthening place-value reasoning and mental math skills.

This worksheet is part of our Subtract by 10s and 20s Worksheets collection.