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9.6%7.6×1.1用简便计算怎么算

9.6-7.6×1.1 =9.6-7.6x(1十0.1) =9.6-7.6-0.76 =2-0.76 =1.24

解:根据提取公因式的简便方法, 原式=4/7x6/9+4/7x1/9 =4/7x(6/9+1/9) =4/7x7/9 =4/9

解:根据提取公因式的简便方法, 原式=4/7x6/9+4/7x1/9 =4/7x(6/9+1/9) =4/7x7/9 =4/9

76×1.9+7.6×81的简便算法 76×1.9+7.6×81 =7.6*19+7.6*81 =7.6*(19+81) =7.6*100 =760

8.9×1.1+15.7×8.9+6.8×1.1 =(8.9+6.8)×1.1+15.7×8.9 =15.7×1.1+15.7×8.9 =15.7×10 =157

6.7×9.9=6.7×(10-0.1)=67-0.67=66.33

6.7×9.9+0.67×2 =6.7×9.9+6.7×0.2 =6.7×(9.9+0.2) =6.7×10.1 =6.7×(10+0.1) =6.7×10+6.7×0.1 =67+0.67 =67.67

原式=9/13*(1/7+6/7)=9/13

7/9*1/13+6/13*1/9 =1/9*7/13+6/13*1/9 =1/9*(7/13+6/13) =1/9*1 =1/9

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