Sum Completion Practice

This worksheet offers a structured set of mixed addition problems, each requiring students to compute sums involving both small and moderate addends. Students fill in each answer box, gaining repeated practice with accurate and efficient computation. The range of number pairs promotes flexible thinking and reinforces mental strategies such as regrouping mentally and counting on. Continued exposure to these mixed facts builds strong numerical fluency, which is essential for progressing into multi-digit addition and more complex mathematics. The simple, consistent layout supports independent work and focuses attention on computation.

Curriculum Matched Skills

Mathematics – Addition Fluency and Accuracy

Mathematics – Operations and Algebraic Thinking

Mathematics – Mental Math Strategy Development

Mathematics – Number Relationships and Automatic Recall

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