作业帮3.6*12.5*0.8 3.6简便计算
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/27 04:50:02
6/5:5/2=12/10:25/10=12：2512.5:0.25=50：13.6:24=18：120=3：20【对不起没能及时回答,浏览器崩溃~】
@“理科家教”为你答疑6/5:5/2=12:2512.5:0.25=1250:25=50:13.6:24=36:240=3:20@若不清楚欢迎追问,懂了请及时采纳!
因为3.75=12.5*0.342.3=0.846*5042.3*3.75=12.5*0.846*15所以3.6*42.3*3.75=12.5*0.846*15*3.6=12.5*0.846*54所以
x+35=79.4X+35-35=79.4-35X=44.4x-5.4=0.8X-5.4+5.4=0.8+5.4X=6.2x/5=4.26X/5x5=4.26x5X=21.33.6x=9.723.6X
3.6×42.3×3.75-12.5×0.423×28=3.6×42.3×1.25×3-1.25×10×42.3×0.28=42.3×1.25×（3.6×3-10×0.28）=42.3×1.25×（1
3.6x42.3x3.75-12.5x0.423x16=36x0.423x37.5-12.5x0.423x16=4x9x0.423x12.5x3-12.5x0.423x4x4=4x12.5x0.423
再问：乘除混合运算不能用交换律吧再答：可以
按照小数的四则混合运算可得：12.5÷3.6-7÷9+8.3÷3.6，=12536-79+8336，=12536-2836+8336，=125−28+8336，=18036，=5；故答案为：5．
(6-5.96)x2.5+0.83=0.04x2.5+0.83=0.1+0.83=0.93
12.5/3.6-7/9+8.3/3.6=125/36-28/36+83/36=(125-28+83)/36=180/36=5
（X-3.6)*15=12.5x-3.6=12.5÷15x=3.6+5/6x=3又3/5+5/6x=4又13/3032-5分之6X=266/5x=32-266/5x=6x=6x5/6x=53分之1-4
12.5×(36-7又1/5)/3.6=(25/2)*(36-36/5)*(5/18)=(25/2)*36*(4/5)*(5/18)=100.
12.5*(36-7又1/5)除以3.6=12.5*36÷3.6-12.5*7.2÷3.6=12.5*10-12.5*2=125-25=100
12.5×（36－7.2）÷3.6(12.5x36-12.5x7.2)÷3.612.5x36÷3.6-12.5x7.2÷3.612.5x10-12.5x212.5x(10-2)12.5x8100
83.1%,＝0.8316分之五≈0.833338分之七≈0.875所以8分之七＞,6分之五＞83.1%＞0.83供参考!JSWYC
(5)/6＜0.85（3）/5＜0.7(7)/9＜0.83(5)/8＞0.6
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3.6*42.3*3.75-12.5-12.5*0.423*28=36*0.423*37.5-12.5*0.423*28=108*0.423*12.5-12.5*0.423*28=0.423*12.5