3.52乘0.79减0.173乘7.9加1.79乘0.21

来源：学生作业帮助网编辑：作业帮时间：2024/05/07 05:24:27

3.52乘0.79减0.173乘7.9加1.79乘0.21
3.52乘0.79减0.173乘7.9加1.79乘0.21

3.52乘0.79减0.173乘7.9加1.79乘0.21
3.52x0.79-0.173x7.9+1.79x0.21=0.79x（3.52-1.73）+1.79x0.21=0.79x1.79+1.79x0.21=1.79x(0.79+0.21)=1.79x1=1.79

3.52乘×0.79-0.173×7.9+1.79×0.21
=3.53×0.79-1.73×0.79+0.79×0.21+0.21
=0.79×（3.53-1.73+0.21）+0.21
=0.79×2.01+0.21
=0.79×（2+0.01）+0.21
=0.79×2+0.0079+0.21
=1.7979

(3.52*0.79)-(0.173*7.9)+(1.79*0.21)=1.79

3.52×0.79-0.173×7.9+1.79×0.21
=3.53×0.79-1.73×0.79+0.79×0.21+0.21
=0.79×（3.53-1.73+0.21）+0.21
=0.79×2.01+0.21
=0.79×（2+0.01）+0.21
=1.7979 (用简便方法做的)

3.52乘0.79减0.173乘7.9加1.79乘0.21 0.79乘7.6加7.9乘0.43减0.079乘19 用简便方法计算0.56乘101还有 2.37 乘 0.5 乘 0.4 3.7 乘 2.5加6.3 乘 2.5 1.2 乘 0.25 0.25 乘 6.9 乘 0.4 0.25 乘 32 乘 1.25 0.79乘0.46加7.9乘0.24加11.4乘0.079 0.9999乘0.7加0.1111乘2.7 正括号3.4乘4.8乘9.5反括号除正括 0.79乘0.46加7.9乘0.24加11.4乘0.079用简便方法计算? 0.79乘0.46加7.9乘0.24加11.4乘0.079怎么简算, 0.79乘0.46加7.9乘0.24加11.4乘0.079怎样简算, 0.79乘0.64加7.9乘0.24加11.4乘0.079用简便方法计算 0.79乘2.5加7.9乘0.75简算. 7.9乘2.1加7.9乘7.8加0.79怎么简便计算 15乘15减14乘14加13乘13减12乘12加11乘11减10乘10加9乘9减8乘8加7乘7减6乘6加5乘5减4乘4加3乘3减2乘2加1乘 45乘12加12乘58减3乘3乘4 脱式计划 73乘10加73乘12减73乘18等于73乘什么 8.5乘0.79减0.35乘7.9简便运算 121乘27加121乘60加121乘16加79乘91加12乘79 6.801减｛0.153加0.801｝简便 40乘13乘25 480除以32 120除以5除以438乘201 45乘97-7乘45 21乘41减21 35乘22加35乘36+35乘22 44乘198 125乘25乘8乘4095乘53加53 99乘125 45乘101减45要算式二分之一x乘y乘x乘x减y乘x乘x的平方,加x乘x乘y. 100乘7.9加184乘2.1加84乘2.9简便运算 13.8乘6.48加13.8乘3.52怎样简便计算?