Okay, we're going to talk about subtraction now. And subtraction is very, very similar to addition. In addition, we added two numbers and subtraction, we subtract a lower number or a lesser value number from a large number. But the first thing we need to do is we need to line up as we did in addition, the decimal point. All right, and then we do what we need to do. And I'm going to give you an example of one right here, a very simple one, but let me let me clear off this slide.

And let's just start off with something like this. Um, let's subtract. Let's take away Let's say 23 from 98. Okay, well one of the ways that we can write it down, we can say 98 minus 23. But what I'd like you to do, and I'm going to put a little separation here is, is again on line up the decimal point. So 98 is my decimal point right there.

And we're going to subtract 23. And here's my decimal point. I've got my decimal points lined up. So eight minus three is why it's five. Nine minus two is seven. So 98 minus 23 is 75.

And here's my decimal point right there. Very Simple, just giving you this may be a review for some of you. others it may be we're introducing something, but this is a very simple operation. Alright, so let's stop here and we're going to do another one. All right, before we go on, I just want to introduce some terms. this number right here, the fancy term for that is minuend.

And that's m i n you end. And the number, the smaller number, which we're going to take subtract from the larger number is called the subtrahend. And my answer is called the difference. So we have the menu in subtrahend. And different so I wanted to introduce, introduce those terms. And we're going to stop this.

I'm going to put another problem up, and we're going to we're going to continue Okay, We have another problem here. 78 minus 24. All right, I'm gonna divide it a little bit. So we're going to put 78. There's my decimal point, minus 24. There's my decimal point right there.

All right, and I'm just going to subtract it. So eight minus four is four, and seven minus two is five is my decimal point. My answer is 54. All right, I'm going to stop here. And I'm going to clear the slide off and put one on for you. Um, there'll be more at the end of the section.

But I'm just going to give you one right now to make sure you can do it. And we're going to stop right now. Okay, here's our problem. And now Da minus 54. Take a stop this stop the presentation and do it and then when you click back on, you'll see the answer. Okay, here we are 98 minus 54 and eight minus four is four, nine minus five is four.

So there's my answer all my difference. All right, let's move on. Okay, let's move on here and the N subtract zero dot 875 minus zero dot 341. Here's my decimal points. Again, we line up the decimal points, zero dot 875 minus zero dot 341. All right, so five minus one is four.

Seven minus four is three. Eight minus three is five. Bring down my decimal point. And we always want to put a zero to the left of the decimal point when we have numbers that are less than one. So this is my answer on my difference. Zero dot 534.

Okay, that's a four right there. All right, that so for All righty, I'm going to stop going to give you one and then we're going to move on. Okay, we're gonna subtract 79 from 87. So again, 87 Minus 79. Make sure my decimal points line up. But look at what we got over here.

If I just look in this column right here, we see that seven is less than nine. So what do we need to do here? Well, if you remember, on the previous section when we talked about auto replaces, what do we know? This right here is my units, all ones. And over here, I have my 10s. So what I need to do is to borrow one from my 10s.

So I'm going to borrow one from over there. And now this Write here is 17 917 minus nine is eight. All right, this now since I borrowed one from that eight, that becomes seven. Seven minus seven is zero. So my answer on my difference is eight. All right, let me stop there, and we'll do another one.

Okay, let's look at this one here. 35 minus 29. All right, again, if you remember, this is my units up here. And the ER is my 10s place right there. So we cannot subtract nine from five. Five is a smaller number.

So what I do need to do is I need to borrow one from my 10s place. So, cross out the three, this becomes two, I bring the one over here. 15 minus nine is six to minus two is zero, My number is on my answer is six. The difference is six. All right, I'm going to stop, clear the slide and I'm going to give you one to work on. And then we're going to move on.

You'll have you'll have some more exercises and more to do at the end of the section. All right. Take a minute Stop, stop the presentation. Do this. When you click back on you'll see the answers but 30 minus 28. All right.

Here's the The answer to this now if I do 30 minus 28, zero minus eight right here. Well, zeros a smaller number. Again, this is my units. I put it up there. There's my unit. So what do I need to do?

I need to borrow one from my 10s place. So now this becomes two. And I have a one here. So 810 minus eight equals two. And two minus two is zero. So my answer my difference is two.

That's it. Again, I'll put some more of these up at the end of the chapter. Do them. Like I showed you previously, I have a help number. If you need to call me call me, send me an email. Whatever.

I'm here to help you, you can schedule time with me. And if I get enough people that need a refresher, we'll do a TeamViewer session, or we'll do we'll do some type of collaboration where we have a mini seminar with three, four or five people, if we can set it up. So with that said, let's stop and go on. Okay, this is the end of, of this section, we're going to move on to the next section, multiplication and division. And I put this up here again, there's my phone number and how to contact me. Enough said we'll see you in the next section.