Subtract by 10s and 20s Worksheets

About This Worksheet Collection

This set of subtract-by-10s and subtract-by-20s worksheets provides students with a clear and systematic pathway toward mastering subtraction with multiples of ten-an essential stepping stone for future multi-digit arithmetic. By offering horizontal and vertical formats, mixed problem sets, and both two-digit and three-digit applications, the collection helps learners visualize and internalize how tens change within numbers. These worksheets make it easy for teachers to assign quick fluency practice, warm-ups, targeted intervention, or center-based work.

As students progress through the pages, they deepen their understanding of base-ten structure, strengthen mental math strategies, and develop the ability to compute efficiently without overreliance on counting. Whether subtracting ten or twenty from two-digit numbers or applying the same principles to three-digit values, students build fluency, accuracy, and confidence. This foundational mastery supports later work with regrouping, multi-step subtraction, and flexible number reasoning.

Detailed Descriptions Of These Worksheets

Subtracting Tens
Students practice subtracting 10 from a variety of two-digit numbers using horizontal equations. The layout supports mental math computation, helping learners understand how subtracting one ten changes a number. Repetition builds fluency and confidence while strengthening place-value reasoning.

Subtracting Twenties
This worksheet focuses on subtracting 20 from multiple two-digit values. Learners use mental strategies to reduce numbers by two tens and quickly recognize predictable patterns. The horizontal format supports fast, clear computation. Students gain confidence with larger single-step changes.

Three-Digit Tens
Students subtract 10 from three-digit numbers, reinforcing how base-ten structure affects hundreds, tens, and ones. The clear horizontal format allows for efficient mental computation. Learners strengthen number sense as they visualize predictable changes in the tens place.

Three-Digit Subtract by 20s
This worksheet has students subtract 20 from three-digit numbers, helping them deepen understanding of how tens shift within larger values. The horizontal structure encourages quick mental reasoning. Students gain fluency that prepares them for more complex multi-digit subtraction.

Mixed Tens and Twenties
Learners subtract either 10 or 20 from two-digit numbers in this mixed-format sheet. The variation encourages strategic thinking and helps students distinguish when numbers decrease by one ten or two tens. Repeated practice boosts fluency and reinforces place-value knowledge.

Vertical Tens
Students solve vertical subtraction problems subtracting 10 from two-digit numbers. The column format helps learners strengthen alignment, neatness, and accuracy. Repetition reinforces predictable number changes and builds confidence in written computation.

Vertical Twenties
This worksheet continues vertical subtraction practice, now focusing on subtracting 20. Students align digits carefully and compute differences with consistency. The structured layout strengthens place-value reasoning and prepares learners for advanced algorithms.

Two-Digit Tens
Students compute horizontal equations subtracting 10 from various two-digit values. The predictable pattern helps learners build mental fluency and understand numerical shifts in the tens place. This page works well for daily warm-ups or fluency sessions.

Two-Digit Twenties
Learners subtract 20 from two-digit numbers using horizontal equations. Repetition reinforces the concept of reducing a number by two tens. Students gain fluency with larger single-step subtraction and strengthen operational reasoning.

Three-Digit Twenties Differences
This worksheet features three-digit subtraction problems involving subtracting 20. Students apply place-value reasoning to determine differences efficiently. The practice strengthens mental math, supports accuracy, and prepares students for multi-digit subtraction with regrouping.

Vertical Tens
Students practice vertical subtraction involving subtracting 10 from two-digit values, using structured answer boxes for proper alignment. Repeated practice helps learners internalize predictable base-ten patterns and build stronger mental subtraction fluency.

Vertical Twenties
Learners solve vertical subtraction equations subtracting 20 from two-digit numbers. The boxed format promotes organized computation and careful digit placement. Students strengthen accuracy and deepen their understanding of how tens operate within subtraction.