Price: 150 points or $1.5 USD
Subjects: math
Grades: 2,3
Description: Great practice for double digit addition and subtraction. Some problems requires regrouping. Students use the numbers on the top of their screen to drag to solve the problem. When a problem requires regrouping, students show their work by dragging the 'x' over the number they're borrowing from, drag the new number above it, and drag a 1 in front of the ones number.