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6.1除0.05的竖式计算

0.42除以12=0.035 验算0.035x12=0.42 等式成立

=1÷(4*0.25*8*0.05*0.5) =1÷(1*0.4*0.5) =5

6.1*1/20

6.1÷0.05=122.0

除数与被除数各扩大100倍

6.1除以0.05=6.1X20=122122 X0.05 6.10

123456789

等于122

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