a=0.000(2008个0)008,b=0.000(2008个0)00125,a+b= a-b= a×b= a÷b=

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a=0.000(2008个0)008,b=0.000(2008个0)00125,a+b=a-b=a×b=a÷b=a=0.000(2008个0)008,b=0.000(2008个0)00125,a+b=

a=0.000(2008个0)008,b=0.000(2008个0)00125,a+b= a-b= a×b= a÷b=
a=0.000(2008个0)008,b=0.000(2008个0)00125,a+b= a-b= a×b= a÷b=

a=0.000(2008个0)008,b=0.000(2008个0)00125,a+b= a-b= a×b= a÷b=
a×b=0.000(4016个0)01
a+b=0.000(2008个0)00925
a-b=0.000(2008个0)00675
a÷b=6.4

a+b= 0.000(2008个0)925
a-b= 0.000(2008个0)675
a×b= 0.000(4015个0)1
a÷b= 6.4
一楼的乘法算错了