Okay, welcome to Al's electronic classroom. And we're on map electronics. In this section, we're going to talk about addition, subtraction, multiplication and division. And before we go on, I'm just going to show you my contact information once again. And again right here is my phone number. So if you need extra help, or you need some question answered you can send to help you out best I can.

We can set up some schedule where if you need additional help or additional questions, we can do it via email, and also via phone. I am trying to make this this course and my courses that I put up on this platform, very close to having a real a real classroom setting. I call it Have a virtual classroom where you can actually call me, we can talk and set up, set up a program where if you need some help, or I can answer questions and and that will determine at that time. So with that said, let's go on. Okay, we're going to talk about addition first here. And before we do that, I just want to review and make something clear.

Again, and you can see our number line right here. And we've got units 10s, hundreds, thousands. We've talked, we've talked about that in the last section. But again, how do we count if you remember, what I stated previously is Yeah, we count 123456789. But ideally, we go from zero to nine and what happens when I say 10 I say 10. Actually what happens if you remember?

I have 110. And then I start again, 0123 and so forth. All right. All right. So basically what have I done? I've carried the one over.

And that's the point I want to make. All right, I've carried the one over. So when I got to nine, I started back at zero at my units place, but I had carried the one in my 10s place. So when I have the one over the 10s place, that means that one equals 10 units and the first unit is zero. All right. So let's, let's go on.

All right, let's go on to the next slide. And here we go math electronics. If you notice, I've added my help number right here. Okay, what does that mean? That means you can call me. What am I trying to do?

I'm trying to make my courses as close to a classroom setting as possible. I call them a virtual classroom. When you call that number, well, I always pick up No, no one will, I can't be here 24 hours a day, seven days a week. Okay, but what I am going to try to do, I'm on eastern standard time I'm in the Boston area. What I'm going to try to do is be here during business hours during the day, and what I consider business hours or nine to five now, I do have other responsibilities and I may have to run out. That means that if you call, you need to leave a message, I will return all messages in the continental United States.

If we need to collaborate, we I'm looking at some conferencing, there's also something that I use called TeamViewer. We can you can download that we can, we can do a TeamViewer session. And we'll we'll get through that. Or maybe we can just talk over the phone. But again, I'm here to help. I want to help you understand the information that I give you.

So enough set on that. So let's now talk about addition. And again, this is very basic. Hang in there because we're going to get some other stuff. So I'm going to do something very, very basic to at some point and We're going to go all the way to equation evaluations, algebraic equation, evaluations at the very end, and everything in between. So let's talk about addition now.

Okay, and again, I'm just picking these numbers out. So let's say arm and again, I want you to add 32 plus 16. Well, you can use the calculator. And we know by using the cow just by looking at it's 48. But let's go through the process here. So what we want to do is, let's use the method where we, we have a column so 32 plus 16, where we want to line up the decimal point and here's my decimal point right here.

Okay, six units, plus two units is why Well 678 in over here, I have Mike 10s three plus one or 30. Well, let's not go that way. Let's just say three under the tense plus one under the tenses. 48. So that's my answer. Now again, we could we can get a calculator and check it.

If you want to do that you can. We're good. Okay, we're good. Well, let's, let's do another one. Let me clear out the slide. And let's do let's start with 32.

But let me pick 29. What does that equal to? Well, again, Let's do what I said before. We take my 32 my 29. I add up, I make sure that that the decimal points line up. So now, two plus nine is what?

It's 11. Remember when we counted? All right, so what do I do? I put my one unit here, and I carry the one over in my tenths place. So now I have a one. Three plus one is four plus two is six.

So we have 61. That's my answer. And that's how I do it. Okay. All right, let's let's do one more. I'm going to clean this slide off.

And let's do 4939 and 29. How's that? Okay, so nine plus nine here, let me do plus here. Let me add up the decimal point. I mean the lineup the decimal points. Okay, nine plus nine is what?

That's 18 plus nine is what? One D seven. What do I do with the two? I carry over here. All right, four plus two is six. plus three is nine plus two is 11 117.

Here's my decimal point. All right. All right, let's do one more. Okay, let's put. Let's put 9999 99 and 99. Again, lineup my decimal points.

What do we have? Well, nine plus nine is what is 18? plus nine is 27. Carry the two. So we have we know three nines of 27 plus two is what? 29.

There's my answer. All right. You think you got it? All right. I'm going to stop. I'm going to put two examples up.

I'm going to let you do it. I'm going to give you the answer. And then we're going to give you some more at the end of this section. All right. Okay. But first, let's review what we want to do.

We want to do what we want to place them placed the numbers in a column number two, number one, number two, let's make sure the decimal point lines up. And then we want to add them. I mean, that's, we want to add them to get our answer. Okay? So that's what we want. Alright, and again, what's that number there people?

It's a help number. Okay, I'm gonna stop it clean this clean screen off and give you some examples. Okay, here are the examples. First one right here 40 to 64 weeks. Nine, second one here, numbers of 3299 89. And the other one here, the last 164 99 104 and 10.

I'm going to stop them. I'm going to put the answers down. When you finish, click on the goal button or resume this lecture, you'll see the answers in my little explanation. Okay, here are my answers. This one here. Okay, two plus four is six, plus nine is 15. carry the one, four, a one plus four is five, plus six is 11. plus eight is 19. carry the one over here.

So I've got nine, I carry the one. These are all what zeros here even though we don't show them we don't need the zeros. So one plus 00 Zero is one. So my answer is 195 is my decimal point. Second one. Nine plus two is what?

11. Plus nine is 20 is my zero, carry the two, two plus three. Two plus three is 514. plus eight is what? 22. Carry the two over here. These are all zeros. All right, two plus 000 is 220.

Last one. Again, before I go on, decimal point is right here. Remember, I didn't show it here, but we need to line up the decimal points right there. Okay, last one. 64 910 410 What is that up to? Well, I said 277.

Okay, four plus nine is what 13 plus four is 17 is the seven carry the one. All right, carry the one over there. Six plus one plus six is seven. plus nine is 16. plus zero is still 16. plus one is 17. Is my seven. carry the one right here.

And I'm sorry, carry the one over here. One plus one is 277. And there's my answer. All right. So these are my carries, carried from the previous step. And here's my answer.

All right, we're going to take up some traction now. And again, I'm going to put Little bit more of these at the end for practice and of course you have the answer and then you've got what you got the number there. Okay?