Increasing Sum Practice

This printable math worksheet is designed to help students in Grades 1 and 2 strengthen addition fluency, number sense, mental math strategies, computational accuracy, and fact recall through focused practice with mixed sums that increase in difficulty. Students solve a range of single-digit addition problems, including combinations that lead to higher totals, writing each answer in a designated box to support precision, clear thinking, and confidence with foundational computation.

Skills Reinforced

• Add Within 20 and Higher (Grades 1-2)
  Build accuracy and confidence with sums that extend beyond basic combinations.
• Foundational Computation Accuracy
  Reinforce careful calculation and correct recording of answers.
• Mental Addition Strategies
  Encourage counting on, decomposing numbers, and using known facts efficiently.
• Number Relationships & Patterns
  Help students recognize how numbers grow and relate across different addition pairs.

Instructional Benefits

• Teacher-Created Resource
  Designed by educators to align with early elementary math standards.
• Structured, Student-Friendly Format
  Boxed answers promote neat work and focused independent practice.
• Balanced Problem Variety
  Includes a mix of approachable and more challenging sums to support growth.
• Flexible Classroom Use
  Ideal for classwork, homework, math centers, warm-ups, review, or intervention.

This increasing sum practice worksheet helps students develop addition fluency, mental computation, number relationships, accuracy, and math confidence as they work with larger totals. Through repeated exposure to varied number pairs, learners build flexible thinking and strong foundations for future multi-digit addition and problem solving. Whether used in a classroom or homeschool setting, this no-prep worksheet provides effective practice that supports long-term success in mathematics.

This worksheet is part of our Mixed Addition Facts Worksheets collection.