九分之8+括号1.7-8⼀9反括号简便计算

九分之8+括号1.7-8/9反括号简便计算
2025-04-08 04:47:21
推荐回答(1个)
回答1:

=8/9+1.7-8/9
=8/9-8/9+1.7
=0+1.7
=1.7