Online College Courses for Credit

Adding and Subtracting Fractions

Adding and Subtracting Fractions

Author: Mandy Casto

The objective of this lesson is for students to learn the process of adding and subtracting decimals, by lining up numbers based on their place value, and using the arithmetic skills they learned in previous lessons.

Decimals are used everyday in many disciplines, including the sciences, accounting, and economics. Students must develop number sense awareness, including place values involving decimals and how to add and subtract decimals, so that they can apply this skill when needed in the real world.

See More

Try Our College Algebra Course. For FREE.

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to many different colleges and universities.*

Begin Free Trial
No credit card required

29 Sophia partners guarantee credit transfer.

311 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 27 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.


Adding & Subtracting Decimals

This video illustrates the steps in properly adding and subtracting decimals.

Adding Decimals Practice Worksheet

This worksheet will give students practice in adding decimals (after watching the video).


Subtracting Decimals

This worksheet can be used for practice of subtracting decimals (after watching the video).

*Page 2 is an answer key.*