The most difficult concept I taught to my 2nd graders was different 2 digit subtraction with regrouping strategies, HANDS DOWN. These proven strategies helped make two digit addition with regrouping
You might be relieved to hear that teaching addition and subtraction within word problems is a BREEZE after having taught Addition and Subtraction to 1000. Students typically get it right
Teaching students to add and subtract up to 1000 is no easy feat. This is by far one of the hardest units that I teach in second grade, but is