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7x75%7x25的简便计算

7X75-7X25 =7X(75-25) =7X50 =350

9x75一7x25=25*(27-7)=25*20=500

9x3x25-7x25(9x3-7)x2520x25500

解:1/75x7/18x75=(1/75x75)x7/18=1x7/18=7/18=18分之7

(7x6)x25 =7x6x25=7x150=1050您好,答题不易如有帮助请采纳,谢谢

7*75-7*25简便计算=7*(75-25)=7*50=350

7*75-7*25=7*(75-25)=7*50=350

22x75+34x25怎么简便计算22x75+34x25=22*3*25+34*25=66*25+34*25=(66+34)*25=100*25=2500

原式=(75x4)x25=75x(4x25)=75x100=7500

解:7x199+7 =7x(199+1) =7x200 =1400

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