(1.1) Subtraction Without Borrowing, First Example
Channel: MathVentures
Date: 28/07/2009

Subtraction Without Borrowing is an alternative method for subtracting multi-digit numbers. The most common method, universally taught, requires a procedure known as borrowing under some conditions. It also requires the subtracting to be performed in order from the least-significant digit on the right to most-significant digit left. As its name indicates, this Subtraction Without Borrowing method requires no borrowing; it is also performed in no particular order. Having these properties, this alternative subtraction method may be easier and or simpler for those who have difficulties with the common subtraction method.

See also --

(1.2) Subtraction Without Borrowing, Why It Works --
        https://www.youtube.com/watch?v=IrxGqB3b3Kk

(1.3) Subtraction Without Borrowing, When the Most Significant Digits Are Equal --
        https://www.youtube.com/watch?v=nCp-6sM8YuU 

(1.4) Subtraction Without Borrowing, When the Last Digit is 9 --
        https://www.youtube.com/watch?v=agn6B8dVDxc

Note: For those who cannot access YouTube, this video is available at TeacherTube -- http://www.teachertube.com/members/viewVideo.php?video_id=144287&title=_1_1__Subtraction_Without_Borrowing__the_Basics