Recently, I saw a string of numbers that are quite interesting: 3, 5, 8, 13, 22, what should I pick up at the end? Those of us who are about 30 years old should be familiar with this kind of problem of finding rules, just like the little threads hidden in life, and when we go well, we will have a special sense of accomplishment.

If you look at the difference between two adjacent numbers, you will see that the difference itself has a pattern - the latter is always 1, 2, 4 more than the first...... It is obviously doubling upward. Following this path, the next difference is 8.

So add 22 to the difference, and the answer is 39. Isn't it easy?

In fact, many things in life are like this, and seemingly clueless numbers or problems can often be sorted out by breaking them down into small steps to find clues. Just like when we calculate wages and plan expenses, don't we often rely on this trick? It's quite interesting to play this little game once in a while and move your brain. Did you guess right?