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MR.writer
Joined Jun 24, 2023
MR.writer
Reader Reviewer
雖然取這個名字,但不太擅長寫小說,
加入penana只是為了閱讀,文筆平淡無奇,偶爾會參加點創挑,但很愛舉辦創挑.

很怪我知道...

頭像為自己用math四個字母製作，是本人作品《速算》中的吉祥物
https://www.penana.com/story/152194/%E9%80%9F%E7%AE%97/
雖然取這個名字,但不太擅長寫小說,
加入penana只是為了閱讀,文筆平淡無奇,偶爾會參加點創挑,但很愛舉辦創挑.

很怪我知道...

頭像為自己用math四個字母製作，是本人作品《速算》中的吉祥物
https://www.penana.com/story/152194/%E9%80%9F%E7%AE%97/
✪ From Taiwan ✪ Male ✪ Born 4th Oct ✪ Bachelor
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MR.writer
速算
MR.writer
614 13 hours ago · Updated to #9
MR.writer
MR.writer
 速算

某上班族心血來潮開的新坑，想跳就跳吧。這不是數學，只是單純的速算，本人會盡量用最簡單易懂的方式讓你了解。

有時也會補充些小知識或有趣的題目。有沒有發現封面的那隻吉祥物是由math組成的！
數學 mr.writer 心算 速算
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