5.6乘69.32+138.64乘0.05+693.2乘0.43怎么简算
答案:1 悬赏:30 手机版
解决时间 2021-02-15 19:13
- 提问者网友：無理詩人
- 2021-02-15 05:39
5.6乘69.32+138.64乘0.05+693.2乘0.43怎么简算
最佳答案
- 五星知识达人网友：掌灯师
- 2021-02-15 06:58
原式
=5.6x69.32+138.64x0.05+693.2x0.43
=5.6x69.32+69.32x2x0.05+69.32x10x0.43
=5.6x69.32+69.32x0.1+69.32x4.3
=(5.6+0.1+4.3)x69.32
=(5.7+4.3)x69.32
=10x69.32
=693.2
=5.6x69.32+138.64x0.05+693.2x0.43
=5.6x69.32+69.32x2x0.05+69.32x10x0.43
=5.6x69.32+69.32x0.1+69.32x4.3
=(5.6+0.1+4.3)x69.32
=(5.7+4.3)x69.32
=10x69.32
=693.2
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