Nikola Tesla, through space and time, offers you an example.

Mathematics penetrates into all areas of our lives. And one has only to look closely to see mathematical patterns even in music and poetry, not just in everyday affairs. Therefore, a strong friendship with mathematics will definitely help to succeed in any field.

But how well did you do in school and how well do you use numbers now? Today's edition. "Site" offer figure out Nikola Tesla, as well as a couple of tasks, when working with which you can assess your mathematical level. Moreover, in the second part of the article, we will also provide answers.

369789

Solving a difficult example

1. The first example does not seem too confusing, but it is quite suitable for warming up. It is only necessary to remember in what order to perform all the arithmetic operations available here: addition, multiplication and subtraction. Remember the basic rules of high school math?
   
   
   
   
2. To solve the second example, you will have to remember the rules of division by fraction. However, not every reader remembers these wisdoms. Although with fractions, and with interest, everyone regularly deals. So how do you find the right answer?
   
   
   
   
3. In the final example, you need to deal with brackets. Many people remember that brackets need to be worked on first. But there are still problems. Can you avoid any missteps? 314265
   
   
   
   

Suggestions for examples

1. First, we perform multiplication, and then perform the remaining arithmetic operations from left to right. Therefore, we easily get the solution: 3 + 3 × 3 - 1 = 3 + 9 - 1 = 11.
   
   
   
   
2. Diligent students will surely remember that dividing by fraction is like multiplying by an inverted fraction. And then it's easy to understand that dividing by 0.1 is like multiplying by 10. And then 5 + 5 ÷ 0.1 = 5 + 5 × 10 = 5 + 50 = 55.
   
   
   
   
3. First you have to open the brackets correctly, and then perform all the arithmetic operations from left to right. Then 60 ÷ 5(9 – 3) = 60 ÷ 5 × 6 = 12 × 6 = 72.
   
   
   
   

Did you get the same answers? Be brave to share your options in the comments. And if the examples seem too simple, then try to cope with more difficult tasks. And also think about tricky tasks that any smart person will take by surprise.