Learn how to split up numbers in your head. Use a linear partitioning tool to help find the difference between pairs of two-digit numbers such as 27 and 86. Choose your own pairs of numbers. Split the numbers 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 use a linear model to solve differences mentally.
2. Students partition numbers and investigate strategies to solve differences mentally.
3. Students apply the associative principle to solve differences 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/
