We often forget that the brain needs the same training as other parts of the body. It is worth stimulating him with various puzzles from time to time. For example, try solving a simple equation from elementary school textbooks. The answer is not as obvious as it might seem at first glance, which is why it divides adults into two camps. Can you handle it?
Such brain training is usually not easy, which is why many people give it up at the very beginning. However, there is no need to rush. Just pick up a piece of paper and a pen and try to solve the problem correctly: 250 – 240: 2. Do you already know where to start?
Training your brain by solving simple equations has important benefits. For example, developing logical thinking, improving math skills, developing creative thinking, preparing for a future career, and improving memory and concentration.
There are two operations in this equation: subtraction and division. To solve it correctly, you will need knowledge from elementary school, that is, knowledge of the order of operations.
Correct answer
If you answered 5, you are wrong. That’s because you started with subtraction. According to mathematical rules, division must be done first; it has priority.
The correct answer is 130. That is, after dividing 240:2, you should have gotten 120. Now all that remains is subtraction, which, according to the rules of procedure, is at the very end. 250 – 120 = 130.
It’s worth keeping these rules in mind to avoid pointless calculations. Always start math operations with parentheses, then move on to multiplication and division, and only then move on to addition and subtraction. Remember this rule if you are going to train your brain with mathematical equations.
Previously, Telegraph offered another simple equation, which, however, is not given to all adults. Look at the picture of the equation and then think about the solution. What will be the answer?
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