5 out of 100 students got this right! 😳 Are you among the 5?

本站添加: 2026-05-17

[00:00:01]Hello, great mind. A lot of students were confused in this particular question. Now, their confusion was because of this division division division, okay? So, what most of them did was to divide this one, okay? 10 / 5, and it gave them um two, okay? / / 5, okay? Now, because they were trying to escape from stress, so what they did again was to use this 10 here to uh use this five to divide this 10, and they had two / 10 / 5 = 2, okay? So, 2 / 2 is 1. And this is what they got, but this is wrong because according to a mathematical rule, when you have more than one division in a particular question, all you need to do is to solve that question from the left to the right, okay? So, if we do that, our question is 10 / 5 / 10 then / 5, okay? So, from here, the first step is to divide this by 5, and we'll have two. So, we'll have 2 / 10 then / 5, okay? So, from here, because there is division here, so we are going to have two / 10, and we'll divide this by 5, okay? Now, this five can be divided by one. Now, for us to solve this question here very easy, we are going to use K C F rule, okay? Where K is keep, okay? K is keep.

[00:01:45]Okay? And C is change.

[00:01:52]And F is flip, okay? F is flip.

[00:01:58]Now, if we apply this rule here, we are going to keep this 2 / 10. So, we have 2 / 10. That is the keep, okay? Now, I'm change involves changes this division to multiplication. So, we change this um division to multiplication. Then, for this flip, we'll flip this 5 / 1, and it becomes 1 / 5, okay? Now, this equals 2 * 1 = 2 / 10 * 5 = 50, okay? So, from here, we can reduce this to the lowest term. 2 divide itself is 1 / um 50 / 2 = 25, okay? So, the correct answer to this particular question here is 1 / 25 or 0.04, okay? If you want it in decimal or you want it in um in fraction, you choose whichever one you want, okay? Now, let's look into this question as well. Now, this one was even more confusing because they have the same number the same number the same number, that is 6 6 6 6, okay? And they have division division division. Now, what most of them did was to divide this by um 6 / 6 is 1 / 6 / 6 is also 1, and 1 / 1 = 1. But, this is also wrong, okay? Because according to mathematical rule, when you have more more than one division in a particular question, all you need to do is to solve that question from the left to the right, okay? You solve it this way, okay? So, if we do that, we are going to have 6 / 6 = 1. Then, we have this division here / 6, okay? Then, divide by this 6. Now, from here, we are going to have 1 / 6, and we'll divide this by 6.

[00:03:50]Now, this 6 can be divided by one. Now, if we apply the KCF rule, where K is keep, okay? And C is change.

[00:04:05]And F is flip, okay? Now, if we apply this rule here, we are going to keep 1 / 6 and change division to multiplication, okay? And flip this, so we have 1 / 6.

[00:04:18]Now, 1 * 1 = 1 / 6 * 6 = 36, and this is the correct answer. Now, from here, for us to solve this particular question, which is 28 - 9 in parentheses * 6 uh + 32 / 8. What we are going to do is to use the PEMDAS rule, okay? P E M D A S, okay? Where P is parentheses, E is exponent, M is multiplication, D is division, A is addition, S is subtraction, okay? And multiplication and division are of the same priority.

[00:05:00]That is to say, if we see both of them in a particular question, like in this form, we are going to solve it from the left to the right, okay? And this addition and subtraction are of the same priority as well. So, we have to solve it from the left to the right if we see it in a particular question, okay? Now, looking at our question, we have parentheses, and that is where we are going to start, okay? So, 28 - 9 = 19 * 6 + 32 / 8, okay? Now, from here, um 19 * um 6, remember that we are solving from left to the right because multiplication and division are of the same priority, okay? So, we have 19 * 6 = 114, okay? Then plus 32 divide by eight. So, from here, 100 and from here we are going to attend to division first because addition and division division is of higher priority to addition, okay?

[00:06:04]So, we have 114 plus 32 divide by eight equals four, okay? So, we have 114 plus four and that is 118. 118 is the correct answer. Thank you so much for watching till the end. Please share this video. Bye.