Subtraction With Regrouping

We are in Unit 4 and are in the midst of subtraction WITH regrouping!

So far we are doing really well at understanding this concept!
Students are determining if subtraction problems need to be regrouped or not.
If so, they begin the subtraction process by borrowing from the tens and adding ten ones. 
Then the subtraction begins.

* There are also videos that correspond to our learning.
1. Explains the process of regrouping with vertical subtraction.
2. Shows the same process with the addition of base ten blocks.

Videos on Subtraction With Regrouping
1. Subtraction 2-digits with Regrouping
2. Subtraction With Regrouping & Base Tens