73 x15+73x15+730.(7400+74)➗37.脱式简便方法
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![73 x15+73x15+730.(7400+74)➗37.脱式简便方法](/uploads/image/z/9445947-51-7.jpg?t=73+x15%EF%BC%8B73x15%EF%BC%8B730.%EF%BC%887400%EF%BC%8B74%EF%BC%89%26%2310135%3B37.%E8%84%B1%E5%BC%8F%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95)
73 x15+73x15+730.(7400+74)➗37.脱式简便方法
73 x15+73x15+730.(7400+74)➗37.脱式简便方法
73 x15+73x15+730.(7400+74)➗37.脱式简便方法
73 x15+73x15+730
=73X(15+15+10)
=73X40
=2920
(7400+74)X37
=74x(100+1)x37
=74x101x37
=7474X37
=276538