Maths DLO: Column Method by Addition and Subtraction

This week on maths we had to make a DLO about a strategy. My group made a column DLO, on this DLO we have to teach you how to use this strategy, and how to use them for addition and subtraction.  I find the column method the easiest strategy to use in addition and subtraction. Although I also found it pretty hard to explain, I managed to finish my DLO. I hope you learned how to use this method.