8.6Ⅹ0.37+0.37Ⅹ8.6简单方法?
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解:8.6Ⅹ0.37+0.37Ⅹ8.6等于( 1591/250 ),【即等于6.364】
∵已知需求出8.6Ⅹ0.37+0.37Ⅹ8.6等于多少
∴8.6 Ⅹ 0.37 + 0.37 Ⅹ 8.6
= 8.6 × 0.37 × (1 + 1)
= (8×10+6)/10 × 37/100 × 2
= 86/10 × 37/100 × 2
= 43/5 × 37/100 × 2
= 1591/500 × 2
= 1591/250
= 6.364
答:8.6Ⅹ0.37+0.37Ⅹ8.6等于1591/250,【即等于6.364】
∵已知需求出8.6Ⅹ0.37+0.37Ⅹ8.6等于多少
∴8.6 Ⅹ 0.37 + 0.37 Ⅹ 8.6
= 8.6 × 0.37 × (1 + 1)
= (8×10+6)/10 × 37/100 × 2
= 86/10 × 37/100 × 2
= 43/5 × 37/100 × 2
= 1591/500 × 2
= 1591/250
= 6.364
答:8.6Ⅹ0.37+0.37Ⅹ8.6等于1591/250,【即等于6.364】
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