Subtraction Strategies: Using Place Value Models

How can we use place value models to help deepen a child's understanding of subtraction? We will take a look at ways this is done in the math classroom so that parents can understand the importance of this step.
Follow up with some Pithy Tips:
Learning addition and subtraction together???

Check out the rest of this series on subtraction strategies:

Check out my series on addition strategies:

Why is Math so different now?