假如A=0.000000000(9个)125,B=0.0000000000(10个)8A=0.000000000125B=0.00000000008求A+B A-B A/BA× B

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假如A=0.000000000(9个)125,B=0.0000000000(10个)8A=0.000000000125B=0.00000000008求A+BA-BA/BA×B假如A=0.0000000

假如A=0.000000000(9个)125,B=0.0000000000(10个)8A=0.000000000125B=0.00000000008求A+B A-B A/BA× B
假如A=0.000000000(9个)125,B=0.0000000000(10个)8
A=0.000000000125
B=0.00000000008
求A+B
A-B
A/B
A× B

假如A=0.000000000(9个)125,B=0.0000000000(10个)8A=0.000000000125B=0.00000000008求A+B A-B A/BA× B
A+B ＝0.000000000（9个）205
A-B ＝0.0000000000（10个）45
A/B＝1.5625
A× B＝0.0000000000000000000000000000（20个）1