We have been working on adding 2 digit and 2 digit numbers with regrouping, as well as, 3 digit and 2 digit numbers with regrouping using the vertical algorithm and place value drawings. This week we are introducing subtraction of 2 digit numbers with regrouping (unbundling/exchanging/decomposing/borrowing). Please see the videos below and refer to the Homework Helper that is sent home with every Homework.