Hi and welcome to Math Antics! In this video, we're going to learn how to do multi-digit subtraction. It's similar to doing multi-digit addition, like we learned in our last video, but there are a few important differences. The main difference is that with subtraction, the order of the problem matters. With addition, you can switch the order of the numbers you're adding and still get the same answer. For example, 5 plus 2 equals 7, and 2 plus 5 equals 7. But with subtraction, if you have the problem 5 minus 2, you'll get 3. However, if you try to do 2 minus 5 instead, you won't get the same answer. In fact, you'll probably get confused because you'll be trying to subtract a bigger number from a smaller one. With multi-digit subtraction, it's important to remember that order matters, especially when you're rewriting your problem. Often, you'll be given a problem like this: 38 minus 25. You'll have to rewrite it with the numbers stacked up, just like we did with addition. But you have to make sure that the first number, the one you're taking from, goes on top, and the number you're taking away is on the bottom. Another hint is that the bigger number should always be on top. Okay, let's go ahead and try this card. We've got 38 on top and 25 below it, and the ones places are lined up just like they should be. Now we draw our line so our answer can go below it, and we write a minus sign over here on the left to show that we're subtracting. Now we can start getting our answer. Just like with addition, we always start with the ones place column. Here, we subtract the bottom number from the top. 8 minus 5 equals 3,...
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Video instructions and help with filling out and completing Form 2220 Subtracting
