72X(1⼀6+30%)-7⼀8

2025-06-28 02:36:03
推荐回答(1个)
回答1:

72×(1/6+30%)-7/8
=72×1/6+72×30%-7/8
=12+21.6-7/8
=33.6-0.875
=32.725