Addition with Carrying / Carry Over Using Decomposition (Lesson 3 of 5) | MathHelpTutor.com

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This is part 3 of 5 lessons about the topic of Addition and Subtraction of Whole Numbers Using the Decomposition Method.
This video will teach you one of the basic concepts behind addition and subtraction using the decomposition method. The video also explains the concepts behind why carrying (or carry on) is done in addition and why borrowing or regrouping is done in subtraction. The technique that is used here is important so you can better understand how to add and subtract numbers using the standard algorithm. This lesson will provide you a great opportunity to learn the fundamentals of addition of subtraction so you can better grasp much more advanced concepts in mathematics. This video serves as an introduction to the main lesson, which is addition and subtraction using the standard algorithm.
Many examples are included here, with a lesson review at the end.