550除以125怎样巧算
550除以125怎样巧算 -
=(550×8)÷(125×8)4400÷1000 =4.4
550÷72×36 =550÷(72÷36)550÷2 =275
=(550×8)÷(125×8)4400÷1000 =4.4
550÷72×36 =550÷(72÷36)550÷2 =275
7000×550÷55巧算:原式=550÷55× 7000 =10× 7000 =70000 您的采纳和点赞是对我最大的支持!祝您好运!谢谢!
550÷110-15×4 =5-15×4 =5-60 =-55 存疑请追问,满意请采纳,
1650÷550该怎样巧算 -
1650÷50÷11=33÷11=3
2200÷550 =2200÷(11×50)2200÷11÷50 =200÷50 =4
300+550÷50×16怎么巧算? -
300+550÷50x16 =300+11x16 =300+(10+1)x16 =300+160+16 =476
巧算如下:42.15ⅹ1.25+28.5÷8+0.125ⅹ550 =421.5ⅹ0.125+28.5×0.125+0.125ⅹ550 =(421.5+28.5+550)×0.125 =1000×0.125 =125
1248-450+550怎么巧算? -
1248-450+550 =1248+(550-450)1248+100 =1348
444×550÷888 =444×550÷444÷2 =444÷444×550÷2 =550÷2 =275