4.5×1.38-0.28的简便计算
答案:2 悬赏:60 手机版
解决时间 2021-04-06 04:46
- 提问者网友:嗝是迷路的屁
- 2021-04-05 10:24
4.5×1.38-0.28的简便计算
最佳答案
- 五星知识达人网友:英雄的欲望
- 2021-04-05 11:50
4.5×1.38-0.28
=(5-0.5)×1.38-0.28
=5×1.38-0.5×1.38-0.28
=6.9-0.69-0.28
=6.9-(0.69+0.28)
=6.9-0.97
=6.9-1+0.03
=5.9+0.03
=5.93
=(5-0.5)×1.38-0.28
=5×1.38-0.5×1.38-0.28
=6.9-0.69-0.28
=6.9-(0.69+0.28)
=6.9-0.97
=6.9-1+0.03
=5.9+0.03
=5.93
全部回答
- 1楼网友:夜余生
- 2021-04-05 13:21
4.5×1.38-0.28
=6.21-0.28
=5.93追答请点采纳,谢谢
=6.21-0.28
=5.93追答请点采纳,谢谢
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