6.你能很快计算出下题的结果吗?+38+23*98-37*23-
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38+23×98+37×23
=38+23×(98+37)
=38+23×135
=35+3+23×(100+35)
=35+3+2300+23×35
=35×(1+23)+2303
=35×24+2303
=840+2303
=3143
=38+23×(98+37)
=38+23×135
=35+3+23×(100+35)
=35+3+2300+23×35
=35×(1+23)+2303
=35×24+2303
=840+2303
=3143
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38+23×98-23×37
=38+23(98-37)
=38+23×61
=1403+38
=1441
=38+23(98-37)
=38+23×61
=1403+38
=1441
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展开全部
38+23×98-37×23
=38+23×98+23×2-23×2-37×32
=38+23×100-39×23
=2300-39×23-23+23+38
=2300-40×23+61
=2300-20×23-20×23+61
=2300-460-460+61
=2361-920
=2361+80-80-920
=2441-1000
=1441
=38+23×98+23×2-23×2-37×32
=38+23×100-39×23
=2300-39×23-23+23+38
=2300-40×23+61
=2300-20×23-20×23+61
=2300-460-460+61
=2361-920
=2361+80-80-920
=2441-1000
=1441
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38+23*98-37*23=38+23*(98-37)=38+23*61=38+23*60+23=61+1380=1441
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