Efficiently Adding Decimals Using the Standard Algorithm

This video tutorial teaches how to add decimals using the standard algorithm. It begins with an introduction to decimal addition and explains the importance of placeholders. The concept of algorithms is defined, highlighting their role in solving arithmetic problems. Common mistakes, such as misaligning decimals, are addressed. The video demonstrates the use of estimation to check the reasonableness of answers. A detailed, step-by-step application of the standard algorithm is provided, followed by a conclusion summarizing the key points.

What should you do if the decimals are not lined up correctly?

Describe the process of estimating the sum before adding decimals.