We will have started subtraction with regrouping...
Check out some of these sites for subtraction practice:
http://www.factmonster.com/math/flashcards.html
http://www.dositey.com/addsub/subra4.htm
Subtraction with regrouping can be difficult for most children. Please practice some problems daily. Also, children need to get the basic facts down as well. Using the flashcards that I sent home, you can create fun games to play. Example: memory with subtraction facts and subtraction bingo.
Essential Question: How can we model 2-digit subtraction with and without regrouping?