假如A=0.000000000(9个)125,B=0.0000000000(10个)8

问题描述:

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

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