0.9999×0.7＋0.1111×2._数学解答

0.9999×0.7＋0.1111×2.

人气：185 ℃　时间：2020-04-11 08:20:27

解答

0.9999×0.7＋0.1111×2.7
=0.9999×0.7＋0.1111×9×0.3
=0.9999×0.7＋0.9999×0.3
=0.9999×（0.7+0.3）
=0.9999×1
=0.9999