Addition algorithm is the opposite of Subtraction algorithm since addition is adding up the numbers and subtraction is taking away the numbers away, Which makes addition the opposite of subtraction. I explained more of how addition algorithm works, please check it out.
I found this activity education because I’m explaining/teaching how addition algorithm works in my DLO.
We first start off by making a DLO for our maths and putting it in the Google slides. I did Subtraction algorithm which is the opposite of addition , and explained how it worked and solved in my DLO and it is pretty easy to solve, just ignore of how high the number is and calculate what the answer is. The explanation is right ontop of this text.
I found this activity educating because I am explaining how Subtraction algorithm works.