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9.6%7.6×1.1用简便计算怎么算

9/8-1/7+1/8-6/7=(9/8+1/8)-(1/7+6/7)=10/8-1=5/4-1=1/4。 使用结合律。

6.7×9.9=6.7×(10-0.1)=67-0.67=66.33

原式=(12.6÷1.4)×(7.6÷1.9)×(2.32÷2.9) =9×4×0.8 =36×0.8 =28.8 望采纳,谢谢

33.3x6.7+99.9×1.1 =33.3x6.7+33.3×3.3 =33.3×(6.7+3.3) =33.3×10 =333

分配率

7/9-(1/6-2/9) =7/9-1/6+2/9 =7/9+2/9-1/6 =1-1/6 =5/6

看图

7.1×2.6+2.6×2.9 =2.6x(7.1+2.9) =2.6x10 =26 祝天天向上。

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*(1.1+8.9) =15.7*10 =157 嘎嘎,这样可以了吧,还上小学呢吧,就学会用网络了,厉害!

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