Subtracting Whole Numbers

• We can use vertical algorithm to substract, the same to addition but to subtract
• we have to respect the period and place, lining upo the numbers
• using this alogorithm in subtraction different than adding, here we have to respect the order. So the number at the right should go to the bottom
• when we cannot do the substraction vertically because the number above is minor than other bellow we take a 1,10 or 100 from the next number. This is named borrowing

What is subtracting?