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3-Digit Subtraction – Missing Numbers Worksheets | Find the Minuend, Subtrahend, or Difference math
Challenge your students’ understanding of subtraction with this set of 3-digit subtraction missing numbers worksheets! These worksheets help learners strengthen their grasp of place value and inverse operations by solving for unknown values in subtraction equations.

Whether the minuend, subtrahend, or difference is missing, these practice sheets promote logical reasoning, mental math, and problem-solving skills.

What’s Included:
20 worksheets with a variety of missing number problems
Equations in both vertical and horizontal formats
Mixed practice: find the missing minuend, subtrahend, or difference
Problems with and without borrowing (regrouping)
Full answer key for easy checking and grading

Skills Reinforced:
Subtraction with 3-digit numbers
Identifying and solving for missing values
Place value understanding and regrouping
Reverse operation thinking and equation solving

Perfect For:
Grades 3–5 students
Classwork, homework, small groups, test prep, or early finishers
Math intervention, enrichment, or review sessions
Strengthening foundational arithmetic and number sense

File Format:
Printable PDF – No prep needed
Clear layout for independent or guided practice
Ideal for classroom and homeschool use

Help your learners move beyond basic subtraction with this fun and challenging resource! These 3-digit missing number worksheets encourage students to think critically while reinforcing essential subtraction skills.
Worksheets are made in 8.5” x 11” Standard Letter Size. This resource is helpful in students’ assessment, Independent Studies, group activities, practice and homework. This product is available in PDF format and ready to print as well.