339如何简便计算
339×(50+÷13)简便计算? -
答:339X(50+/13)339X(50/13)=(339X 50)/13 =16950/13 = 1303·85
=339x(101一1)339x100 =33900
答:339X(50+/13)339X(50/13)=(339X 50)/13 =16950/13 = 1303·85
=339x(101一1)339x100 =33900
=25×(339+61)=25×400 =10000
=(339+161)197 (根据加法结合律)500-197 =303
999✘339 339用简便方法计算 -
999×339+339简便计算如下:999×339+339 =999×339+339×1 =(999+1)×339 =1000×339 =339000
=25×(339-39)-20×25-2×25 =25×300-500-50 =7500-500-50 =7000-50 =6950
339加503简便方法计算 -
339加503=842 339 +503 ___842
339+98=339+100-2=439-2=437
339x88-39x88简便计算 -
339×88-39×88 =(339-39)×88 =300×88 =300×(100-12)30000-3600 =26400
重新排序:(339-39)(32+68)300+100=400。希望对你有帮助,