소수의 덧셈과 뺄셈 by 맹민우 https://padlet.com/namdol82/awjhrdihs9m2s667 놀라움을 담아 만듦 en-us 2021-02-02 14:16:40 UTC 2023-02-19 04:31:11 UTC hello@padlet.com namdol82 https://padlet.com/namdol82/awjhrdihs9m2s667/wish/1153750903 2021-02-02 14:17:56 UTC https://padlet.com/namdol82/awjhrdihs9m2s667/wish/1153750903 첫번째 문제 namdol82 https://padlet.com/namdol82/awjhrdihs9m2s667/wish/1153752287 선생님과 영희의 한뼘의 합은 얼마일까요?]]> 2021-02-02 14:18:09 UTC https://padlet.com/namdol82/awjhrdihs9m2s667/wish/1153752287 46이요 namdol82 https://padlet.com/namdol82/awjhrdihs9m2s667/wish/1153801330 2021-02-02 14:26:13 UTC https://padlet.com/namdol82/awjhrdihs9m2s667/wish/1153801330