CCSS.Math.Content.1.OA.A.2 - Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.

 
Authors: National Governors Association Center for Best Practices, Council of Chief State School Officers

Title: CCSS.Math.Content.1.OA.A.2 Solve Word Problems That Call For Addition Of Three... Operations and Algebraic Thinking - 1st Grade Mathematics Common Core State Standards

Publisher: National Governors Association Center for Best Practices, Council of Chief State School Officers, Washington D.C.

Copyright Date: 2010

(Page last edited 10/08/2017)

1. Adding Three Numbers - Find the sum of the three numbers.
2. Adding Three Numbers - Click on the UFO math problem, then click on the right answer on the left.
3. Adding Three Numbers - Online quiz; self checking
4. Adding Three Numbers - Online quiz; self checking
5. Adding Three Numbers - Choose the sum of these three numbers.
6. Adding three Numbers through 12 - Add these numbers and click on the correct sum.
7. Adding Whole Numbers - Solve these word problems adding three numbers.
8. Practice Addition of Multiple Addends. - Create your own problems for adding multiple numbers. Great for IWB and whole class activity.
9. Three Numbers- Word problems - Video; solve these word problems.
10. Word Problems - Adding three numbers word problems.