78.4/0.25*0.4怎样简便运算?
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78.4/0.25*0.4怎样简便运算?
78.4/0.25*0.4怎样简便运算?
78.4/0.25*0.4怎样简便运算?
78.4/0.25*0.4
=78.4/0.1
=784
78.4/0.25*0.4
=78.4/0.1
=784
78.4/0.25*0.4
=78.4/0.1
=784