怎样算简便0.25*5.9*40-59
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怎样算简便0.25*5.9*40-59怎样算简便0.25*5.9*40-59怎样算简便0.25*5.9*40-590.25*5.9*40-59=0.25*4*59-59=59-59=0原式=(4*0.
怎样算简便0.25*5.9*40-59
怎样算简便0.25*5.9*40-59
怎样算简便0.25*5.9*40-59
0.25*5.9*40-59
=0.25*4*59-59
=59-59
=0
原式=(4*0.25-1)*59=0
0.25*5.9*40-59
＝0.25x40x5.9-59
=10x5.9-59
=59-59
=0
0.25*5.9*40-59=（0.25*40）*5.9-59=10*5.9-59=59-59=0
或者原式=(4*0.25-1)*59=0