Question 1208362
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For this technique, see these sources and learn from them


video lesson (Youtube)
https://www.youtube.com/watch?v=1GazztzsIuY


textual lesson
https://www.houseofmath.com/encyclopedia/numbers-and-quantities/arithmetic/addition-and-subtraction/how-to-subtract-using-the-column-method



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<U>Comment from student</U>: Thank you for instructing me to click on Youtube to learn about how to explain the subtraction problem. I truly appreciate you.



<U>My response</U>: It is a strange and unnatural form to express your gratitude. I would even say - a miserable form.


I did not instruct you to click on Youtube.


I simply found appropriate and easy accessible sources for you in the internet, and if you want to say "Thanks", 
say it exactly in this form: "Thank you for finding/pointing appropriate sources for me to learn the subject from".



In the form as you write your comment, it is, probably, a form to troll  - not a form to gratitude.