99x0.625十0.625x102用简便方法?

如题所述

第1个回答  2021-08-30
99×0.625+0.625×102
=99×0.625+0.625×101+0.625
=200×0.625+0.625
=125+0.625
=125.625
第2个回答  2021-08-30
99x0.625+0.625x102
=0.625x(99+102)
=0.625x201
=0.625x(200+1)
=0.625x200+0.625
=125+0.625
=125.625
第3个回答  2021-08-29
0.625x(99+102)
=0.625x(99+101+1)
=0.625x(200+1)
=0.625x2x100+0.625
=1.25x100+0.625
=125+0.625
=125.625
第4个回答  2021-08-29
计算
99*0.625+0.625*102
=0.625*(99+102)
=0.625*201
=0.625*200+0.625
=125+0.625
=125.625
第5个回答  2021-08-29
你好!
99×0.625+9.625×102=
(99+102)×0.625=
201×0.625=
(200+1)×0.625=
200×0.625+0.625×1=
125+0.625=
125.625