Some people like to memorize pi, memorize the names of dishes, memorize ancient poems and so on.
I don’t know if you have noticed this. No matter what you recite, when we recite something, when we recite it again, we just extract what we have remembered from our minds.
The process of memory is divided into two parts, one is remembering, which is to store something in our brain, and the other is memory, which is to find and extract from our brain, what we have stored.
From this perspective, when we are reciting ancient poems and pi, but not remembering, we are exercising the function of preservation. And once you remember it, when you recite it again, it is the function of searching and reading.
So the question is, does what we call exercise memory mean to exercise the ability to save, or to exercise the ability to read? Everyone must want to say, is this nonsense? Of course I want to have both, both to exercise saving and also to exercise reading.
What I want to say is that if everyone wants to have both, then the effect of memorizing pi and ancient poems is not good enough. Because, with this approach, reading and saving workouts is a bit disjointed.
The method I recommend is to do it in your head, double-digit or triple-digit multiplication.
You can try it. To get the correct result, the key is to remember the result of the previous calculation.
This method has the following advantages:
1. Easy to verify.
The result is correct, indicating that the memory is correct. It can be verified multiple times.
2. In the process of mental calculation, we exercise the ability to save and read at the same time.
3. It is easy to judge one's own ability level. For example, mine is a two-digit multiplication level, and yours is a three-digit multiplication level. As for memorizing pi, even if you can memorize it to 10,000 decimal places, it is difficult to say that your memory is stronger than that of memorizing it to 1,000 decimal places.
4. Easy to implement. Anytime, anywhere, just think of two-digit numbers and do the math.