05:42
Addition of Whole Numbers, Part 2: Three Things to Remember About Addition of Whole Numbers
This clip reviews the key points about adding whole numbers. The first of these is that there are 100 addition facts that need to be memorized. The second is the idea of expanded notation. Third is the notion that, when we add, we can rearrange and ...
00:43
Addition of Whole Numbers, Part I: Summary: Addition of Whole Numbers, Part One
This clip summarizes some of the main ideas that pertain to the addition of whole numbers, including the concept of combining smaller numbers, known as addends, to form a larger number, called the "sum," as well as learning the 100 addition facts so...