2.5乘以7.8＋7.4乘以7.8＋0.78用简便怎样计算
答案:2 悬赏:30 手机版
解决时间 2021-02-05 10:54
- 提问者网友：焚苦与心
- 2021-02-05 05:01
2.5乘以7.8＋7.4乘以7.8＋0.78用简便怎样计算
最佳答案
- 五星知识达人网友：一秋
- 2021-02-05 06:22
2.5X7.8+7.4X7.8+2.5X7.8+7.4X7.8+0.78
=2.5X7.8+7.4X7.8+0.1X7.8
=（2.5+7.4+0.1）X7.8
=10X7.8
=782.5X7.8+7.4X7.8+0.78
=2.5X7.8+7.4X7.8+0.1X7.8
=（2.5+7.4+0.1）X7.8
=10X7.8
=78
=2.5X7.8+7.4X7.8+0.1X7.8
=（2.5+7.4+0.1）X7.8
=10X7.8
=782.5X7.8+7.4X7.8+0.78
=2.5X7.8+7.4X7.8+0.1X7.8
=（2.5+7.4+0.1）X7.8
=10X7.8
=78
全部回答
- 1楼网友：独行浪子会拥风
- 2021-02-05 07:51
2.5X7.8+7.4X7.8+0.78
=2.5X7.8+7.4X7.8+0.1X7.8
=（2.5+7.4+0.1）X7.8
=10X7.8
=78
=2.5X7.8+7.4X7.8+0.1X7.8
=（2.5+7.4+0.1）X7.8
=10X7.8
=78
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