30-3.25-12.85简便运算

30-3.25-12.85简便运算
2025-03-20 17:07:39
推荐回答(3个)
回答1:

30-(3.25+12.85)
=30-16.1
=13.9

回答2:

30-3.25-12.85
=30-(3.25+12.85)
=30-16.1
=30-16-0.1
=14-0.1
=13.9
谢谢,请采纳

回答3: