This mental math trick makes squaring 3-digit numbers easy! (No calculator)

624 square in five seconds, can you get it? That's not really it; now I'm going to show you some shortcuts. will help you get this done in five seconds, now I'm going to start with something that is small Okay, welcome back to my channel. So first, let's start with 107. Now notice that we have zero. in the center, so we're going to call this trick ignore zero Now I'm going to show you what I mean by ignore 0. So first Of all we are going to do 7 squared which is 49, so write 49 1 squared which is 1, so you write your 1 Now, as I said, ignore 0. You just do 1 times 7, which is 7, right? 1 times 7 times this 2 times this 2. And that will give you 14. And this is our answer. 11,449 You can actually verify it using your calculator. Now, let's use another example. Okay? Calm down if you don't even understand. We have 203 squared. Okay? Now, 3 squared is 9. Make sure you write your answers as two-digit numbers, okay? So, 3 squared is 9. Now, 2 squared is 4. Leave the center, all right? So, you go to 2 times 3 times these two. and that will give you six times two, which 12 .center Your answer is forty-one thousand two hundred and nine. You can also press your calculator to confirm. Let's do the last one now. This one is a very large number. We have nine hundred and nine squared. if this is the first time you've seen This lovely channel, please hit the subscription button. Turn your notification bell So you don't miss our lovely videos, okay? Give us a thumbs up. if you love what we are doing, most importantly please support us Your feedback, what do you think? about our videos, we need that in the comments The good, the bad, the ugly—we're there reading. them, so let's start with nine squared Also, now nine squared is 81, you write your 81. This squared, which is 9 as well, 9 squared is also 81, we write down our 81. I want you to pay attention to this one in particular, okay? So 9 times 9 is 81, what is 81 times 2? So if we have 81 times 2, we have 162. Remember that you Only two-digit numbers are allowed here. So I'm going to write down 62 and carry over one. So write 62 here, carry one over here, and add. So, I'm going to have 826281 826281 You're going to do this for me, do 205 before we go. to other numbers that do not have zero in the center, so the first thing I'm going to see in the comment section from you is going to be the square of 205 okay yes using this method ignore zero method Now, assuming there is no zero at the center, what do we do? Let's check. Now this time you are not going to ignore zero. because there is no zero, so whatever we have at The center matters now we have 214 squared, okay, it's The same thing: four squared is 16, two digits. So 16 will write 1 6 1 squared is 1, so we start with 4 squared, which is 16. then we go to one squared, which is one but we'll write it as a two-digit number, so we're going to 01 so write 01 okay now 2 squared 2 squared is four so write it 04 Zero four, we are done now This is what you're going to do. This is very easy. do this two times one two times one times two remember this two And that's four, okay. So you're going to write this two-digit number quickly. this and write this here 404 as two digits, don't worry, by the time we Doing the second one, we see that it's very easy. Yes, now we've done it twice—one time we're going to do one times four now one times four times two All right, you always multiply these two. and that will give you eight, so we have Zero eight. Now you can see that there is a space here. and there is another space here Just put your place value, your placeholder Which is zero? Now we are not going to ignore zero this time. We are going to multiply two by four, okay. So we have two times four, which is eight. and eight times two, which is sixteen So we are going to write sixteen here at the center. Replace your placeholders, place your placeholders, then you add. It's not difficult, you're going to do the second example. So wait, don't go anywhere yet by the time You'll understand in the second example. So if you add, we have six, we have nine, we have seven. We have um five and we have four. This is zero. so it can be skipped; therefore, 214 squared is 45,796 forty-five thousand Now let's do the second example, as I said, we don't need it. To run, we're good to go, okay now we have three one two three one two squared So we're going to start with two squared, right时段 two squared is four remember two-digit number so write zero four one squared one remember right, so it's going It's going to be 0, 1, 0, 1. Now, 3 squared. It's nine, that is zero nine; we're done with the first step. The second step is where you multiply. and multiply by two, okay so we have three times one times two, three times one times two, which is six, so leave the first and start from here zero six as two digits; now we have one times two So it's going to be 1 times 2 times 2. And that's four, that's zero four, right, zero four. then you now do three times two times two three times two times two three times two six six times two Twelve, remember you're writing this Here at the center now add your placeholders add So bring down four, bring down four, we have three. And nine, so our answer is ninety-seven thousand three hundred. and forty-four if you're still here Thank you so much, I believe. At this point, you actually understand what we are doing now. The last but not the least is 624. which one is this here, okay, so 624 squared I don't know what you're referring to. Please provide the full context or question so I can assist you accurately. also want to see the answer in the comments using this the method I just explained Thank you so much for watching. See you in my next video, bye.