7.8一0.38一3.62+3.2简便计算

2024-11-01 14:22:35
推荐回答(2个)
回答(1):

7.8一0.38一3.62+3.2
=(7.8+3.2)-(0.38+3.62)
=11-4
=7

回答(2):

=(7.8十3.2)一(0.38+3.62)
=11一4
=7