Online College Courses for Credit

Using a number line for mental math

Using a number line for mental math

Author: Jonathan So

To learn how to use a number line as a strategy for adding.

The video included is a great video to help students understand how to use a number line.  This is a strategy that we have been using in the classroom and is something you may want to try at home for addition and subtraction.

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.


Using a number line for adding