A math homeworker whose parents stunt like Father Koschei

Solving different examples Interesting and useful at any age. So a person not only spends time interestingly, but also gives the brain the necessary warm-up, keeps his mental abilities in good shape. Therefore, we regularly find and offer new problems that will be of interest to readers of all age categories.

And today's edition. "Site" It offers to cope with simple (at first glance) examples that should definitely be possible for any diligent middle school student. However, often even quite adults and experienced people make mistakes, give incorrect answers or even do not find solutions. Will you try to solve this?



Solving different examples

1. The first example consists of only threes, but even here it is quite possible to get confused. There are also brackets, and multiplication, and division, and addition. Therefore, it is necessary to understand in what order to perform arithmetic operations, so that the answer is correct. After all, otherwise the highest ball will not get.
   
   
   
   
2. The second example is shorter, but will everyone be able to solve it? Try to properly deal with brackets to give the example a simple look. Finding the right answer will not be difficult. And if you have doubts, just check with our decision in the second part of the article.
   
   
   
   
3. The last example is quite simple, but here you can make a mistake. Can you avoid confusion and write the right number instead of the question mark? And even if it turned out to be easy to solve all the examples, do not be lazy to offer them to other family members. You will find out if everyone knows and remembers the basics of mathematics.
   
   
   
   

Tips and solutions

1. The first thing you always need to deal with brackets, then there will be no confusion. And so we get: 3 ÷ 3 × 9 × 3 ÷ 3 + 3. This example is simply solved from left to right: 1 × 9 × 3 ÷ 3 + 3 = 27 ÷ 3 + 3 = 9 + 3 = 12.
   
   
   
   
2. Here we also get rid of brackets first. The result is: 15 + 5 × 4 = 15 + 20 = 35. Although some adults forget that multiplication should be done in the first place, as a result, all operations are performed in the wrong order. And that gives the wrong answer.
3. In the last example, you need to correctly multiply the decimal fraction by the natural number. And those people who are very good at calculating interest will easily decide everything in their minds. The result is: 160 – 25 = 135. But if you perform the operations in the wrong order, you can get 15.
   
   
   
   

Don’t forget to write in the comments what answers you found correctly. As well as continuing to address different examples from our recent publications to keep yourself in good intellectual shape.