Commentators split into two camps, furiously setting an example. Bashny.Net

Those who loved math in school and in adulthood do well. But sometimes even one clueless It will help a person to understand what mistakes he makes even in the simplest arithmetic operations. After all, not everyone at one time managed to make friends with this complex science.

Since mathematics is used in any field of life, bad numbers always make itself felt. And today's edition. "Site" It offers readers some clever examples. Try to solve them to understand how well you mastered the school curriculum. Surely.



A complex example with an answer

1. The first example may act as a small warm-up. Although there is addition, and multiplication, and even division. Take a look at the picture below and try to give the correct answer in 15-20 seconds. The main thing is not to get confused in this abundance of fours.
   
   
   
   
2. The second mathematical example is more impressive. You will need to understand the brackets to find the answer. No need to look for a calculator, everything is decided in the mind. We have no doubt that you will succeed.
   
   
   
   
3. With the latest example, not everyone can understand. After all, agree that in everyday life, a person does not often deal with decimal fractions. Not everyone will remember the mathematical rules. Try to do this, otherwise the right example will not work.
   
   
   
   

Decisions and responses

1. The first thing you need to do is multiply and divide, and only then add. Therefore, our example assumes the following form: 4 + 4 × 4 + 4 ÷ 4 = 4 + 16 + 1 = 21. If the sequence of your actions was correct, then the answer will be exactly the same as ours.
   
   
   
   
2. The second example seems rather cumbersome. And some people are even afraid to approach him. But in reality, it turns out to be simple. First we open the brackets, and then everything goes like oil: 77 ÷ 7 (3 + 3 + 3 + 2) = 77 ÷ 7 × 11 = 11 × 11 = 121.
   
   
   
   
3. Here, first of all, we perform division. How do you divide any number by 0.25? It's like multiplying by 4. Therefore, 0.5 + 0.5 ÷ 0.25 = 0.5 + 0.5 × 4 = 0.5 + 2 = 2.5.
   
   
   
   

Did you manage to solve all the examples correctly? Then try to cope with even more difficult tasks. Don’t forget to share your answers with other readers in the comments.