Millionaire blogger made the mistake of deciding if you could find the right answer

Let's see if you remember well. procedure in examples with brackets. It is necessary to relax the mind at any age. And mathematical problems for this are the best possible. This time for help we turn to a well-known teacher of mathematics from Chelyabinsk. Petr Zemskov knows exactly how to put everything on shelves in a matter of minutes.



A couple of years ago I told you about a math teacher from Chelyabinsk. He loves this science so much that he created his own YouTube channel, which shows how to solve certain examples and problems.



Takprosto Peter Zemskov sincerely loves his work. For him, being a teacher means not just coming to class and dryly laying out a theory. A man always tries to connect his subject with real life. After all, not everyone likes mathematics, and especially not everyone is given it easily.

In fact, this is one of the reasons why Peter decided to dive into the wilds of the Internet. First, in 2017, he registered on YouTube. Then the students began to agitate Zemskov to start an account in TikTok. Now this social network is at the peak of its popularity. So the aspiring math blogger had every chance to expand his audience.



Working on videos in TikTok became a challenge for the teacher. After all, the mass of information must be put in 15, 30 or 60 seconds. Peter accomplished this task with hurrah. In the Internet began to write that the Chelyabinsk teacher in just 2 weeks was able to give the entire course of geometry in the 7th grade. And this is far from the limit of his capabilities!

Recently on his YouTube channel released a video with one interesting mathematical problem. To solve it, you need to remember the order of action in the examples with brackets. Any student will cope with such an example very quickly, without even thinking about it. But for many adults, it turns out to be a problem.

Take a good look at this example. No matter how simple or complex it may seem, we always decide what is inside the brackets first. In this case, we need to subtract from nine two: 9 - 2 = 7.



Now it is best to write down the result and move on with a pure heart. Division and multiplication are equal actions in the example. And there can be no question of any priority of multiplication in this context.

So the example has changed. And now we have to divide the forty-two by six, and then multiply the resulting number by 7: 42 ÷ 6 × 7 = 49. And the final action is to divide the forty-nine into seven: 49 ÷ 7 = 7. It's brilliant.

Let us consolidate the material passed and try to solve another example with brackets.



First of all, we perform actions in brackets, as the teachers of mathematics insisted. Therefore, our example is 9 ÷ 3(2 + 1) = 9 ÷ 3 × 3 = 3 × 3 = 9. Although some people for some reason do the division operation last, which is why in this example they have the answer is 1.

In the second example, there are only fours, but there are as many as three arithmetic operations. So, here too, everything may not be as easy as it seems at first glance. Do you remember the order in which the strict math teacher demanded to perform all the actions? Then write the correct number instead of the question mark you will not be difficult.



When solving the second example, it should be borne in mind that we first perform multiplication and division, and only then subtraction. So we get 4 × 4 - 4 ÷ 4 = 16 - 1 = 15. Write in the comments what answer you got in this example.

I hope this article helped you to defuse your routine a bit. Try to do such exercises for the mind more often. They're useful at any age!