Question

请大家猜猜这个脑筋急转弯

小明向爸爸借了500元，向妈妈借了500元。到鞋店买了双鞋子花了970元，剩下30元，还给爸爸10元，还给妈妈10元，自己剩下10元，最后欠爸爸490元，欠妈妈490元，
490元*2等于980元，加上自己的10元，等于990元？还有10元哪里去了呢？？

Answer 1

What does friendship mean? There is no definite answer. An eternal theme in literature, friendship is also indispensable in daily life. Friendship is to our life what salt is to dasher. When you are happy, friendship is just like adding flowers on the brocade; when you are sad, friendship is a dose of consolation; if you are in trouble, friends will surround you and remove the barriers for you; if you have a hard nut to crack, you can turn to friends for help. We admire the great friendship between Marx and Engel, which firmly combined them and pushed them forward on the road to exploring and fulfilling Communism.
Friendship isn't almighty, but no one can live happily without it.

Answer 2

500+500-970=30(元）
小明：10元
爸爸：10元
妈妈：10元
490的二倍=980+10+（980-970）=1000元

Answer 3

970除以2等于485 小明在没还父母之前分别借的
485加10等于495 小明在剩的30元里拿出20元分别还给父母两个人的
495乘2等于990 小明花完钱和小明给父母还完钱后的总数
1000减990等于10 小明自己剩下的10元
所以，还有十元在小明的手里~~~

Answer 4

借款：爸500+妈500
开销：970
还款：爸10+妈10
余额：10
借款=开销+还款+余额
1000=970+20+10

望采纳Y(^_^)Y

Answer 5

实际爸爸妈妈980元，自己有10元，买鞋后借的钱剩下（980-970=）10元，加起来就1000元