ABC Elementary

This is an awesomely effective activity to teach the foundation of subtraction using base ten blocks. The students do not just learn the process of the algorithm. They use the manipulatives and learn to make the correct exchanges. In my experience, students are excited when they actually begin to understand the process behind regrouping subtraction. As a teacher, I am always excited when I see the light go on as the student begins to “get it”! This download includes two identical slides o