This Math Problem Stumps Everyone!

[00:00:00]Hello everyone.

[00:00:02]Today in this example, I have a calculation, interesting calculation for you.

[00:00:07]12 / 3 * (1 + 3) Maybe you can find it very easy by adding these two numbers. 1 + 3 is 4.

[00:00:22]And you can see 3 * 4 is 12.

[00:00:26]And you have a 12 / this 12. And finally you got 1.

[00:00:34]But this answer is not correct.

[00:00:37]I will explain you here why this is not the correct solution.

[00:00:44]Because when you have several operations in a calculation, you have to respect the rules for operations orders.

[00:00:54]We call it PEMDAS.

[00:00:57]P E M D A S is the first priority for calculation.

[00:01:10]It stands for parentheses. First you have to do the parentheses and everything inside it.

[00:01:16]Then you can go for E stands for exponent numbers.

[00:01:20]M stands for multiplication.

[00:01:23]D for division.

[00:01:25]A stands for addition and finally S stands for subtraction.

[00:01:30]But the point is here is that multiplication and division are in same order.

[00:01:37]No priority for them.

[00:01:39]Addition and subtraction also are in same order.

[00:01:43]In these cases with the same order priority for operations, you have to choose go and choose from the left operations, doing them and then go step by step to the right side.

[00:02:01]>> [snorts] >> According to this rule, we can go back to our calculation. We have a parenthesis here. So, according to this rule, first this parenthesis.

[00:02:14]1 + 3 is 4.

[00:02:18]And then you can write the rest numbers here. 12 I have a 12 here.

[00:02:24]Divide on this three here.

[00:02:28]And between them is a multiplication.

[00:02:33]But now you have only division and multiplication.

[00:02:38]And you can see from here they are in same order. And in these cases, you have to go from left to right.

[00:02:47]So, first the left one.

[00:02:50]12 / 3 gives us 4.

[00:02:54]And 4 * 4 we got it 16.

[00:03:01]You can see the old answer was one and it was not correct, but here the correct answer is 16. Please write me here your calculation. If you have any other suggestions, if you have any comment, please leave your comment here. Uh please don't forget to subscribe my channel. You can find a lot of mathematical examples every day, every week. Thank you for your attention.