Online College Courses for Credit

Adding Doubles +1

Adding Doubles +1

Author: Dayna Patzke

Students will use doubles facts to master doubles plus one facts with automaticity.  This is a strategy used when the two numbers added together are next to each other on the number line.  TEKS 2.4A Students recall basic facts to add within 20 w/ automaticity.

The students will use the double facts to master doubles plus one facts by doubling the smaller number and adding one to the sum.

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.

312 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.


Doubles Plus 1

A lesson explaining how to use double facts to help you solve doubles plus one facts.