Question

0.00.25*0.00.4|1005个0| |1006个0|0.00...............25*0.00...

Answer 1

例如：0.25*0.04=0.01

0.025*0.004=0.0001

0.0025*0.0004=0.000001

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0.(1005个0）25*0.（1006个0）=0.（2011个0）1