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Khan Academy

Khan Academy: 2 Digit Place Value Challenge

For Students 1st Standards
Practice breaking numbers apart into tens and ones.
Activity
K-5 Math Teaching Resources

K 5 Math Teaching Resources: Division Strategy: Partition the Dividend [Pdf]

For Students 5th - 6th
Break numbers apart as a strategy to divide.
Activity
University of Colorado

University of Colorado: Ph Et Interactive Simulations: Make a Ten

For Students 3rd - 5th
An interactive simulation that teaches about place value, addition, and subtraction by adding, breaking apart, and combining numbers by making tens and focusing on place value. This simulation can either be downloaded or played online...
Unit Plan
Khan Academy

Khan Academy: Adding 53+17 by Making a Group of 10

For Students 2nd - 3rd
Sal adds 53+17 by breaking apart the numbers and making a group of 10. [3:35]

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