Different Ways to Add

Last week we focused on learning various strategies for adding large numbers. We reviewed the traditional algorithm, and we also learned the partial-sums and column addition algorithms. Each of these strategies forced us to gain a deeper understanding of what happens when we add. I want our kids to develop conceptual understandings of how numbers work, and these algorithms helped accomplish this. On this Friday quiz, you can see how Emily used all three of the algorithms to add numbers. Many of our students did the same thing, and I'm very proud of their mathematical thinking.