Primary Math Challenging Word Problems;
Primary Math Intensive Practice.
五,六年级就开始用AOPS的书: Prealgebra https://artofproblemsolving.com/store/item/prealgebra
Primary Math Challenging Word Problems;
Primary Math Intensive Practice.
五,六年级就开始用AOPS的书: Prealgebra https://artofproblemsolving.com/store/item/prealgebra
• 不如直接用aops的教材 -柳伊伊- ♀ (0 bytes) () 10/02/2017 postreply 16:18:47
• 没用过AOPS的小学教材。 -BeLe- ♀ (0 bytes) () 10/02/2017 postreply 16:21:23
• 小学不都开始学prealgebra了吗? -柳伊伊- ♀ (32 bytes) () 10/02/2017 postreply 16:44:45