This free partial sums worksheet is a great tool to use in the classroom when teaching addition by two and three digit addends. It helps students keep their work organized and neat with the use of the grid paper. The tens and ones column can be clearly identified as well which allows the students to better comprehend how to solve addition problems using partial sums.
→ A Double-Sided Worksheet (sums are under 100 and also over 100)
→ Answer Key
This worksheet correlates with my Partial Sums Task Cards and differentiated Recording Sheets