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78.6 11列竖式计算

7.145

78.6*1/11

7.145454545

78.6÷11=7.1454545…

19.76÷5.2=3.8 78.6÷11=7.14545

78.6÷11=7.145(商用循环小数表示) 5.63÷7.8≈0.72(得数保留两位小数)

2.7x0.11=2.7*(0.1+0.01)=2.7*0.1+2.7*0.01=0.27+0.027=0.297

45*11=495 竖式计算过程如下图所示

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