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39x5X4=多少,用脱式计算

39x5X4=多少,用脱式计算 39x5X4 =39*(5*4) =39*20 =780

102x54 =(100+2)x54 =100x54+2x54 =5400+108 =5508

题干不详

4.23x4.6+4.6x5.77 =4.6x(4.23+5.77) =4.6x10 =46 望采纳,谢谢!

98x54+ 64x54+ 54x38 =54×(98+64+38) =54×200 =10800

=42÷42x5/7x5/7 =1x5/7x5/7 =25/49

506x5 =(500+6)×5 =500×5+6×5 =2500+30 =2530

42x53 =42x50+42x3 =2100+126 =2226 请采纳正确答案,你们只提问,不采纳正确答案,回答都没有劲!谢谢管理员推荐采纳!! 朋友,请【采纳答案】,您的采纳是我答题的动力,如果没有明白,请追问。谢谢。

(425一329)x5÷24怎样用脱式计算简便得20 (425一329)x5÷24 =96*5÷24 =5*96÷24 =5*4 =20

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