大师作文网简算：7142.85/3.7/2.7/1.7*0.7
来源：学生作业帮 编辑：大师作文网作业帮 分类：数学作业 时间：2024/11/19 21:05:06
简算：7142.85/3.7/2.7/1.7*0.7
是乘以1.7吧?否则都除不尽了
法一：把7142.85分解质因数即得7142.85=3*3*3*5*11*13*37*0.01=5*11*13*27*37*0.01
7142.85÷3.7÷2.7×1.7×0.7
=5×11×13×27×37×0.01÷3.7÷2.7×1.7×0.7
=5×11×13×27×37÷37÷27×1.7×0.7
=5×11×13×1.7×0.7
=850.85
法二：
7142.85÷3.7÷2.7×1.7×0.7
=7142.85÷37÷27×17×7
=7142.85×7÷999×17
=49999.95÷999×17
=50.05×17
=850.85
法一：把7142.85分解质因数即得7142.85=3*3*3*5*11*13*37*0.01=5*11*13*27*37*0.01
7142.85÷3.7÷2.7×1.7×0.7
=5×11×13×27×37×0.01÷3.7÷2.7×1.7×0.7
=5×11×13×27×37÷37÷27×1.7×0.7
=5×11×13×1.7×0.7
=850.85
法二：
7142.85÷3.7÷2.7×1.7×0.7
=7142.85÷37÷27×17×7
=7142.85×7÷999×17
=49999.95÷999×17
=50.05×17
=850.85
7142.85÷3.7÷2.7×1.7×0.7
7142.85/3.7/2.7*1.7*0.7是多少
⑴ 7142.85÷3.7÷2.7×1.7×0.7
7142.85÷3.7÷2.7×1.7×0.7的巧算问题 一定要有过程具体!
7142.85除以3.7除以2.7乘以1.7乘以0.7等于多少?
7142.85÷3.47÷2.7×1.7×0.7
2.7×3.7+0.37×73 简算
1.7*24.5+0.7*76.5-0.7简算
2.7×3.7＋0.37×73 简算
简算0.999×0.7＋0.111×3.7
简算2.7*6.3+2.7*3.7 速度回答!奖励有的!
2.1×5.1×159.1÷0.7÷1.7÷3.7（简便计算）