39.7×0.7+3.97×3怎么简算
答案:4 悬赏:40 手机版
解决时间 2021-02-14 15:41
- 提问者网友:轻浮
- 2021-02-14 12:22
39.7×0.7+3.97×3怎么简算
最佳答案
- 五星知识达人网友:天凉才是好个秋
- 2021-02-14 13:03
39.7✘0.7+39.7✘0.3=39.7✘(0.7+0.3)=39.7✘1=39.7
全部回答
- 1楼网友:老鼠爱大米
- 2021-02-14 15:11
39.7×0.7+3.97×3
=3.97×10×0.7+3.97×3
=3.97×(7+3)
=3.97×10
=39.7
=3.97×10×0.7+3.97×3
=3.97×(7+3)
=3.97×10
=39.7
- 2楼网友:底特律间谍
- 2021-02-14 14:01
39.7×0.7+3.97×3
=39.7×0.7+39.7×0.3
=39.7×(0.7+0.3)
=39.7×1
=39.7
=39.7×0.7+39.7×0.3
=39.7×(0.7+0.3)
=39.7×1
=39.7
- 3楼网友:等灯
- 2021-02-14 13:41
解:39.7×0.7+3.97×3
=3.97×7+3.97×3
=3.97×(7+3)
=3.97×10
=39.7
=3.97×7+3.97×3
=3.97×(7+3)
=3.97×10
=39.7
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