The square of the number 1- 10 is not difficult for anyone. However, if 10 or more is used frequently, it will be more troublesome. What about the cubic number? Cubes with numbers greater than 5 are already chaotic. Do the math with a calculator? Do you have that time during the exam? Even if you have time, you are not allowed to use calculators in the examination room. Let's remember with our brains. Memory? You're out! !

Memorizing numbers can be easy for anyone, as long as they master the secret weapon: image memory! As we all know, numbers can be converted into codes, and codes are images, thus becoming vivid and concrete. So how do numbers translate into images? Through homophonic, pictographic and combination forms, it can be transformed into images. For example: 12- baby, 13- doctor, homophonic method. 1 1- chopsticks, 22- mandarin duck, pictograph. 20- earrings, 50- rings, combinations.

Using digital coding, you can do many seemingly impossible things, such as easily remembering hundreds of thousands of pi, remembering hundreds of random numbers in one minute and remembering the order of a playing card in a few minutes. Of course I remember the phone number, not to mention. Recently, I have seen many people struggling with series, especially the series composed of square numbers and cubic numbers. Ask to see the series to reflect the original number. Rote memorization is inefficient and fast to forget. Therefore, the commonly used hard square numbers and cubic numbers are summarized.

Remember the commonly used square cubic numbers skillfully, and use the methods of digital coding and homophonic association. When remembering, you must imagine images and scenes in your mind, which is the only way to enhance your memory:

1 1? Square of 2 1

1 1= 12 1? 11121(stand up and shout slogans)

12= 144? Babies can bite lions.

13= 169? The doctor bit the horn.

14= 196? The key is still sliding.

15=225? Parrot and mandarin duck dance

16=256? Keep the erhu.

17=289? Abandon the bully's feet

18=324? The fence is stuffed with earwax.

19=36 1? Misgurnus anguillicaudatus bite

20=400

2 1=44 1? Crocodile ripper

In order to distinguish it from the square number, the original number of the cubic number is put behind.

5? The cube of 2 1

125=5? The baby whimpered.

2 16=6? Crocodile yo-yo

343=7? A gentleman slapped his wife.

5 12=8? I want to love my father.

729=9? Penguin saves uncle

133 1= 1 1? Chopsticks used by doctors to kill fish

1728= 12? Abandon the bully and choose the baby.

2 197= 13? Crocodiles eat doctors.

2744= 14? A lovely wife always loses her keys.

3375= 15? Butterflies bully parrots.

4096= 16? Siling Hotel Central Liu

49 13= 17? Fourth uncle has been married for a lifetime.

5832= 18? I use a fan as a fence.

6859= 19? Zanthoxylum bungeanum soaked medicinal liquor

8000=20

926 1=2 1? Ball wheelchair chasing crocodile