第1个回答 2021-08-29
99x0.625+0.625x102
=99x0.625+0.625x(101+1)
=99x0.625+0.625x101+0.625
=(99+101)x0.625+0.625
=200x0.625+0.625
=125+0.625
=125.625
第2个回答 2021-08-29
99*0.625+0.625*102
=0.625*(99+102)
=0.625*(200+1)
=125+0.625
=125.625
第3个回答 2021-08-29
99x0.625十0.625x102
=0.625(99+102)
=0.625(100+100+1)
=0.625x100+0.625x100+0.625x1
=62.5+62.5+0.625
=125+0.625
=125.625
第4个回答 2021-08-31
99×0.625+0.625×102
=0.625×(99+102)
=0.625×200+0.625
=130+0.625
=130.625