This tutorial is suitable for use with a screen reader. It explains strategies for solving subtractions in your head such as 87-39. Work through sample questions and instructions explaining how to use linear partitioning techniques. Solve subtractions by breaking them up into parts that are easy to work with, work out each part and then solve the original calculation. This learning object is one in a series of five objects.
Objective
1. Students investigate the application of strategies to assist in calculating subtractions mentally.
2. Students investigate the application of the associative principle to assist in calculating subtractions mentally.
Curriculum Information
Education Type
K to 12
Grade Level
Grade 4, Grade 3, Grade 5, Grade 6
Learning Area
Mathematics
Content/Topic
Numbers and Number Sense
Intended Users
Educators, Learners, Students
Competencies
Copyright Information
Copyright
Yes
Copyright Owner
Education Services Australia
Conditions of Use
Use, Copy
Technical Information
File Size
0 bytes
File Type
application/x-rar
Software/Plug-in Requirements
Adobe Flash Player - http://get.adobe.com/flashplayer/
