About this Simulation

This interactive simulation helps learners understand addition with carry by visualizing how numbers combine and regroup. Students explore two-digit addition problems where sums reach 40, seeing exactly how carrying works when ones place digits total ten or more. Adjustable variables allow customization of problems for differentiated practice.

Learning objectives: Add two-digit numbers accurately using the carry method | Understand place value and regrouping in addition | Develop fluency with addition facts up to 40