4th Grade Subtraction
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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
