Mathematics - Addition and Subtraction - Two-digit addition with regrouping - Carry and Add
Vertical addition problems with regrouping. The interface shows boxes for: carried digit, ones answer, tens answer. Student must fill all three. 12 problems where ones sum is 10-18, requiring a carry. Examples: 56+27, 38+44, 69+15, 47+47. If the student forgets to carry, highlight the carry box in y