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630×25+250×37简便计算

630×25+250×37 =630X25+25X370 =(630+370)X25 =1000X25 =25000

440×25+250×56 =440×25+25×560 =25×(440+560) =25×1000 =25000

用简便计算 52×37/50 =26×37/25 =(25+1)×37/25 =25×37/25+37/25 =37+1又12/25 =38又12/25

简便方法计算如下: 780×25+250×22 =780×25+(25×10)×22 =780×25+25×(10×22) =780×25+25×220 =(780+220)×25 =1000×25 =25000

=25X4X8+250X4X8 =800+8000 =8800 ~希望对你有帮助,请及时点击【采纳为满意回答】按钮~ ~手机提问的朋友在客户端右上角评价点【满意】即可~ ~你的采纳是我前进的动力~~

解:原式=25x4+250x4+4x8x125 =100+1000+4x1000 =1100+4000 =5100 分析:主要考察拆分法和分配律的运用。

把16分成4×4就可以了就是25×4×250×4

78×250-370×25+250简算 78×250-370×25+250 =250*78-250*37-250 =250*(78-37-1) =250*5 =1250

440×25 250×56简便计算 440×25 250×56 =250*(44+56) =250*100 =25000

(250-25)×8 =250×8-25×8 =2000-200 =1800

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