Stop using a calculator! Square any two-digit number mentally with this math trick.

9,604 One, two, three. Not yet. But I'm going to show you two methods that you are going to use to find the value of this. Welcome back to my channel. Now, 98 squared, we are going to start with something smaller. But this is the first method. The first method. Alright. First, let's start with something smaller. 21 sq. 21 Square, the first thing you need What you do is draw three lines, one, two, and three, then one squared. Is one right here two squared? Four is right here now, two. one times two equals four right here now check your calculator what Is 21 squared definitely 441, right? Wait, we're going higher, right? We are still going to get to this one. Now, what if one of these numbers has A two-digit number whose square is? For example, 32 squared, okay? Draw your three lines as well. Now, 3 squared is 9. Sorry, 2 squared is 4. You write your 4. 3 squared is 9. Write your 9. Now, 3 times 2 is 6. six times two, that is, three times two times two But wait, there is a second method that is faster. than this method, so I would like you to watch to the end because I will still show you a second a method that is faster than this method and it works for all squares, okay, all two-digit numbers squares Now. three times two is six and six times two It's twelve now. What do we do? We're going to write two here. Bring one over to this side. So we are going to add this one to nine; we are going to have ten two. and four, and this is the answer you are permitted To use your calculator, please press your calculator. This is the answer. Now, can we go from there? Let's move forward a bit. Okay, let's look for a larger number now. You have 43. because some of you came to this one you did Why didn't you use the large number? Your large number doesn't work for all of them. Ta-ra, ta-ra, ta-ra. as long as this is a two-digit number This method will work right now: 43 squared. Let's draw our three. We have three squared as what nine, right? Or nine, we have four squared at 16. Write your 16. Ok, now 4 times 3 times 2, 4 times 3 times 2, and this is what 4 times 3 is: 12. 12 times 2 is 24, so we write 24. As usual, we are going to write 4 here And bring this to this place and add. Now when we add, we are going to have 18, 4, and 9, which is 1849 And that's actually 43 squared. If you are still watching at this moment that means you are enjoying this video, and if this is the first time you see us, you need to subscribe, okay, like this video, subscribe, and turn on your notification bell So you don't miss my videos, I upload them as often as possible. Tune in at your convenience—there must be something new. For you to watch now, drop your comment and tell Tell me if you have other faster ways of doing it I would like to learn that too, okay. Thank you. Thank you very much. Now, we have a larger number, 67 squared, 67 squared. So, here you need to be careful. We have three digits, three lines, sorry. Now, 7 squared is 49, because you end up with a two-digit number. You are not writing both of them. As I said, I have another method that is faster and easier. So, watch to the end to see that method. So, we have 49. We are going to write down 9 and carry 4. OK, now 6 squared is 36. 6 squared is 36, so you write 36 All right, now 6 times 7 times 2. 6 times 7 is what, 42, right? 42 times 2 is 84, so 84, remember you have a carry of 4 And that's eight eight; you have another two digits you are not allowed to write any two digits except at the end, so you are going to write it and carry the tens and add them to this place Okay, and now 36 plus 8 is 44. So we have 4489, and that is the answer. I believe you're enjoying this video. So now, let's solve the one I gave you in the first place. And I think I'll leave that one to you. Can you try that out? 98 squared. Now let's use the second. and the fastest method, so if you've watched this far You'll be glad you did because this second method is much easier than the first one That's what I personally use now, the second method. and the faster or fastest method Okay, we are going to start with the smallest number. to the largest as well now the smallest The number is 21 squared. Now pay attention, I want you to pay maximum attention All right, one squared is one. In this second method, do not write any number. Your number must be two digits, not one digit. so even when you get a product as a one-time purchase Write it as a two-digit number by adding a zero at the end of it, this is what I mean one squared is one, I won't write one, I won't zero one two squared is equal to four And I can write this as 04 as a two-digit number, right? so I'll write zero four Now we have 2 times 1 times this 2, And that is 4 again. Remember, we must write it as a two-digit number: 04. Now, in this method, always leave this first part, okay? Leave this first part, then come from here and write your 0, 4. Skip this place; you don't need it, okay? Now add 1, 4, and 4, and that's your answer. Let's do a bigger number, okay? Let's go. for a larger number, so now let's assume you have 32 squared, now we have two squared, this one is equal to zero four remember you must write this as a two the digit three squared is equal to zero nine, so write zero nine now three times two times this two Is equal to twelve All right, now this is a two-digit number; just write it down, remember. to leave this space then from here you write your two then you add four two nine plus one zero and that's it You can see that this is much easier. and faster than the first method, I know some of you are like JJ check the last one, check the bigger number That's exactly what I want to do right now. Now let's look for a bigger number, let's say 96. Remember this is Your own classwork, tell me the answer. In the comments, alright, you can use the first one. Method or the second one for me, I prefer the second method. so let's say 96 squared is still The same thing, okay, so we say 6 times 6 is 36. Because it's a two-digit number, I'll write it. Like that, 9 squared, 9 times 9, is 81. It's a two-digit number. I'll write it like that. Now, please, I forget whether you want me to teach. How to square a three-digit number The number of likes I get on this video will tell me If you're interested in it, just comment below. two if you want me to show you how to square a three-digit number very, very fast, okay, just drop Part two in the comments and I'll definitely make A video for that, all right. So now we have 8136. Is this remaining this and this right nine times six times two now nine times six is the same thing as Sixty minus six, which is fifty-four, right? So we have fifty-four times two, two times four, eight. Two times two is four, so we have one hundred and eight. So you add that we have six eleven, carry one two. 9,260 Thank you so much for watching, and see you in my next video. Bye.