Spend three minutes a day to train your brain easily, so that happiness can follow you and your life is colorful.
Hello everyone, I am a wise life. The exciting 24-point math game challenge is about to start again.
Are you ready for this brainstorming? Our rule is to use your mind to calculate. Don't be opportunistic!
Question 1: 7, 7, 7, 12. The first minute.
When I first saw these four numbers, because the numbers are relatively large, the first thought that flashed into my mind was whether the number is equal to 24 by addition and subtraction. But by calculating this idea failed. I thought about it again, and there was a number 12 in the title. Then I can take advantage of 12×2=24. Then my answer has already appeared. I think the difficulty of this topic is still medium. It took me about 25 seconds to do this question.
Question 2: 4, 5, 6, 7. The second minute.
When I saw these four numbers, I thought the topic would be easier. As I expected. My solution is to use the 4×6 approach. As a result, the answer was easily calculated. And there's more than one way. This question is still quite interesting. I used three methods to solve the problem. But it took me almost 40 seconds to do these three methods.
Question 3: 3, 5, 9, 13. The third minute.
When these four numbers came into my eyes, I used my old method. Because the number is relatively large, I still use addition and subtraction to calculate whether the problem can be equal to 24. Sure enough, for larger numbers, using addition and subtraction can be equal to 24. If you only calculate one method, I think it's easier. If you continue to add solutions to the problem, the problem is of medium difficulty! See if you can solve the question in other ways in less than a minute.
Today's brainstorming session has ended. I believe you will have a very happy time in these three minutes! I am a wise life, and we will see you next time.