✔ 最佳答案
I have 750 memorized, so I'll share how I do it. I start with 50 digits...
3.
14159265358979323846264338327950288419716939937510
from here i split into groups of three
141 592 653, etc
I guess 4's is ok too, but i find that anything less is too slow moving and anything more is too overwhelming, 3 is personally my favorite, but see what's best for you.
I use dates to help me a lot. Like if the series was 522, I think May 22. Make sure you don't continue another set of 50 until you know the ones you've started. The worst thing is to be at 400 and realize you've forgotten 200-250. Also to help practice in review I use what I call a pi pyramid. For each set of 50 I write down...
141
141592
141592653
etc...
It helps to add on little by little.