7142.85除以3.7除以2.7乘以1.7乘以0.7等于多少?

dxs452022-10-04 11:39:541条回答

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欣欣然xr 共回答了15个问题 | 采纳率93.3%: 7142.85÷3.7÷2.7×1.7×0.7
=1930.5÷2.7×1.7×0.7
=715×1.7×0.7
=1215.5×0.7
=850.85; 1年前

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简算：7142.85/3.7/2.7/1.7*0.7 hstking1年前1: l_hongzhe 共回答了14个问题 | 采纳率92.9%

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

1年前查看全部

7*0.17/0.37*27 *7142.85=? boringjoke1年前2: 1心灵驿站共回答了9个问题 | 采纳率100%

((7 * 0.17) / 0.37) * 27 * 7 142.85 = 620 269.65
7 * 0.17=1.19
1.19/ 0.37= 3.21621622
3.21621622* 27 = 86.8378379
86.8378379* 7 142.85 = 620 269.65

1年前查看全部

7142.85÷3.7÷2.7×1.7×0.7 7142.85÷3.7÷2.7×1.7×0.7 99×1.01×77.78＋66.66×33.33 墨吟1年前1: anry1 共回答了25个问题 | 采纳率88%

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
99×1.01×77.78+66.66×33.33
=99×（1+0.01）×77.78+33.33×（2+1）
=99.99×77.78+99.99
=99.99×78.78
=（100-0.01）×78.78
=7878-0.7878
=7877.2122

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7142.85÷3.7÷2.7×1.7×0.7 7142.85÷3.7÷2.7×1.7×0.7 对不起,是简算, 依雪wj1年前1: Nessa 共回答了22个问题 | 采纳率90.9%

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
奥数题啊!

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7142.85除以3.7除以2.7乘以1.7乘以0.7 2736426131年前1: 郭子仪共回答了14个问题 | 采纳率100%

7142.85除以3.7除以2.7乘以1.7乘以0.7
=7142.85÷3.7÷2.7X1.7X0.7
=714285/100X10/37X10/27X17/10X7/10
=19305/100X10/27X17/10X7
=715/100X17X7
=85085/100
=850.85

1年前查看全部

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