126*110+1260*9怎样简便运算?
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126*110+1260*9怎样简便运算?
126*110+1260*9怎样简便运算?
126*110+1260*9怎样简便运算?
126*110+1260*9
=126*110+126*90
=126*(110+90)
=126*200
=25200
126*110+1260*9
=126*110+126*90
=126*(110+90)
=126*200
=25200
126*110+1260*9
=126*110+126*90
=126*(110+90)
=126*200
=25200