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4th Grade Subtraction

Open Number Line for Subtraction
Video example: http://learnzillion.com/lessons/1583-solve-subtraction-problems-using-a-number-line

Subtract three digit numbers using expanded form
This video takes you through how to expand a number into each place value to help you subtract.

http://learnzillion.com/lessons/3002-subtract-threedigit-numbers-using-expanded-form

Subtraction using a number line

This video shows how to “jump back” to find your answer.

Subtraction Using the Algorithm
Subtraction Using the Standard Algorithm: http://learnzillion.com/lessons/3160-subtract-using-the-standard-subtraction-algorithm

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