1240*3.4+1.24*2300+12.4*430简便计算
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1240*3.4+1.24*2300+12.4*430简便计算
要综合算式
要综合算式
![1240*3.4+1.24*2300+12.4*430简便计算](/uploads/image/z/1029283-43-3.jpg?t=1240%2A3.4%2B1.24%2A2300%2B12.4%2A430%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97)
1240*3.4+1.24*2300+12.4*430
=1240*3.4+1.24*1000*2.3+12.4*100*4.3
=1240*3.4+1240*2.3+1240*4.3
=1240*(3.4+2.3+4.3)
=1240*10
=12400
=1240*3.4+1.24*1000*2.3+12.4*100*4.3
=1240*3.4+1240*2.3+1240*4.3
=1240*(3.4+2.3+4.3)
=1240*10
=12400