Modeling - Hard Subtraction 1

Trixie was 3 years and 4 months old at the time that this video was made.

The Problem

Trixie had just easily modeled an Easy Subtraction problem so I decided to try a Hard Subtraction 1 problem. The problem is, "I have 2 chickens and you have 5 chickens. How many more chickens do you have than I have?"

What To Look For In This Video