作业帮5.4-1.5×2.6 3/5÷[(3/4-2/3)×4] 30.8÷[14-(9.85+1.07简便计算
来源：学生作业帮 编辑：作业帮 分类：数学作业 时间：2024/07/17 20:29:01
5.4-1.5×2.6 3/5÷[(3/4-2/3)×4] 30.8÷[14-(9.85+1.07简便计算
5.4-1.5×2.6 3/5÷[(3/4-2/3)×4] 30.8÷[14-(9.85+1.07简便计算
5.4-1.5×2.6 3/5÷[(3/4-2/3)×4] 30.8÷[14-(9.85+1.07简便计算
5.4-1.5×2.6=5.4-1.5x(2+0.6)=5.4-3-0.9=1.5
3/5÷[(3/4-2/3)×4]=3/5x1/4x(3/4-2/3)=3/20x3/4-3/20x2/3=9/80-6/60=9/80-1/10=1/80
30.8÷[14-(9.85+1.07]
=30.8÷[14-(10-0.15+1+0.07)]
=30.8÷[14-(11-0.08)]
=30.8÷(14-11+0.08)
=30.8÷(14-11+0.08)
=30.8÷2.92
=10.548
再问： 5.4-1.5×2.6 3/5÷[(3/4-2/3)×4] 30.8÷[14-(9.85+1.07简便计算
再答： 5.4-1.5×2.6 =5.4-1.5x(2+0.6) =5.4-3-0.9 =1.5 3/5÷[(3/4-2/3)×4] =3/5x1/4x(3/4-2/3) =3/20x3/4-3/20x2/3 =9/80-6/60 =9/80-1/10 =1/80 30.8÷[14-(9.85+1.07] =30.8÷[14-(10-0.15+1+0.07)] =30.8÷[14-(11-0.08)] =30.8÷(14-11+0.08) =30.8÷(14-11+0.08) =30.8÷2.92 =10.548
再问： 你错了，下面两道
再答： 5.4-1.5×2.6 =5.4-1.5x(2+0.6) =5.4-3-0.9 =1.5 3/5÷[(3/4-2/3)×4] =3/5÷[(9/12-8/12)x4] =3/5÷(1/12x4) =3/5x3 =9/5 30.8÷[14-(9.85+1.07] =30.8÷[14-(10-0.15+1+0.07)] =30.8÷[14-(11-0.08)] =30.8÷(14-11+0.08) =30.8÷(14-11+0.08) =30.8÷2.92 =10.548 现在没错了 望采纳
再问： 5.4-1.5×2.6 =3×1.8-3×1.3 =3×（1.8-1.3） =3×0.5 =1.5 3/5÷[(3/4-2/3)×4] =3/5÷[1/12×4] =3/5÷1/3 =3/5×3 =1.8 30.8÷[14-(9.85+1.07 ）] =30.8÷[14-10.92] =30.8÷3.08 =10 你真的错了，看你那么拼命采你
3/5÷[(3/4-2/3)×4]=3/5x1/4x(3/4-2/3)=3/20x3/4-3/20x2/3=9/80-6/60=9/80-1/10=1/80
30.8÷[14-(9.85+1.07]
=30.8÷[14-(10-0.15+1+0.07)]
=30.8÷[14-(11-0.08)]
=30.8÷(14-11+0.08)
=30.8÷(14-11+0.08)
=30.8÷2.92
=10.548
再问： 5.4-1.5×2.6 3/5÷[(3/4-2/3)×4] 30.8÷[14-(9.85+1.07简便计算
再答： 5.4-1.5×2.6 =5.4-1.5x(2+0.6) =5.4-3-0.9 =1.5 3/5÷[(3/4-2/3)×4] =3/5x1/4x(3/4-2/3) =3/20x3/4-3/20x2/3 =9/80-6/60 =9/80-1/10 =1/80 30.8÷[14-(9.85+1.07] =30.8÷[14-(10-0.15+1+0.07)] =30.8÷[14-(11-0.08)] =30.8÷(14-11+0.08) =30.8÷(14-11+0.08) =30.8÷2.92 =10.548
再问： 你错了，下面两道
再答： 5.4-1.5×2.6 =5.4-1.5x(2+0.6) =5.4-3-0.9 =1.5 3/5÷[(3/4-2/3)×4] =3/5÷[(9/12-8/12)x4] =3/5÷(1/12x4) =3/5x3 =9/5 30.8÷[14-(9.85+1.07] =30.8÷[14-(10-0.15+1+0.07)] =30.8÷[14-(11-0.08)] =30.8÷(14-11+0.08) =30.8÷(14-11+0.08) =30.8÷2.92 =10.548 现在没错了 望采纳
再问： 5.4-1.5×2.6 =3×1.8-3×1.3 =3×（1.8-1.3） =3×0.5 =1.5 3/5÷[(3/4-2/3)×4] =3/5÷[1/12×4] =3/5÷1/3 =3/5×3 =1.8 30.8÷[14-(9.85+1.07 ）] =30.8÷[14-10.92] =30.8÷3.08 =10 你真的错了，看你那么拼命采你
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