How to Add or Subtract Decimals | Part 1 of 4 | Add: 3.7+12.4 | Minute Math

In this video we learn how to Add or Subtract Decimals. We show how to simplify 3.7+12.4.

The steps on how to add or subtract decimals are:

1. Write the numbers vertically so the decimal points line up.
2. Use zeros as place holders, as needed.
3. Add or subtract the numbers as if they were whole numbers. Then place the decimal in the answer under the decimal points in the given numbers.

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Here is the link to our website which covers this topic more in depth: https://minutemath.com/pre-algebra/decimal-operations/

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Marecek, L., Anthony-Smith, M., & Mathis, A. H. (2020). Use the Language of Algebra. In Prealgebra 2e. OpenStax. https://openstax.org/books/prealgebra-2e/pages/5-2-decimal-operations. License: CC BY 4.0. Access for free at https://openstax.org/books/prealgebra-2e/pages/1-introduction ... https://www.youtube.com/watch?v=wDNPyf-KvMM