666+10-9-8+7+6-5-4+3+2-1怎样用巧算方法来做?

2025-06-28 18:29:02
推荐回答(1个)
回答1:

=666+(10+7)-(9+8)+(6+3)-(5+4)+(2-1)
=666+17-17+9-9+1
=666+1
=667