Solve subtractions such as 28-9. Use a linear partitioning tool to help solve randomly generated subtractions. Learn strategies to do complex arithmetic in your head. Split a subtraction 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 partition numbers and use a linear model to solve subtractions mentally.
2. Students apply the associative property to solve 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/
