回复：三年级的数学怎么回答？

来源: 于 2012-11-19 17:44:24 [旧帖] [给我悄悄话] 本文已被阅读：次

6+4=10 is not divisible by 9. so 64 is not the product 9 and 7.

very weird. 7x9=63. of course it is not the product of 9 and 7.