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75x27+19x25简便计算怎么做

原式=3*27*25+19x25=81*25+19x25=(81+19)x25=100x25=2500

=25x3x27+19x25=25x81+19x25=25x(81+19)=25x100=2500.(谢谢采纳!)

把75拆分来处理,75=25*325*3*27+25*19 再提取公约数25*(3*27+19) =25*100 =2500

75*27+19*25 =25*3*27+19*25 =25*3*27+19 =25*100 =2500

75x27十19x25 简便 解答:75x27十19x25 =25x3x27+19x25=25x(81+19)=25x100=2500

(75+19)*27=2538

31x870+13x310=31 x870 +13 x31 x10=31 x870+31 x130=31 x(870+130)=31 x1000=3100075x27+19x25=25 x 3x27+25 x19=25 x81 +25 x19=25 x(81+19)=25 x100=2500 不明白就追问,满意点击右下角采纳,谢谢.

75X27十19X25=3x25X27十19X25=25(3X27十19)=25x100=250031x870十13X310=31x870十13X31x10=31(870十13X10)=31x1000=3100064X54一32X8=2x32X54一32X8=32(2X54-8)=32x100=3200

75x27+19x25=25x3x27+25x19=25x(81+19)=25x100=2500

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