4.2×8.3+59×0.83-0.8的简便计算
答案:1 悬赏:50 手机版
解决时间 2021-11-28 18:40
- 提问者网友：沉默的哀伤
- 2021-11-28 07:44
4.2×8.3+59×0.83-0.8的简便计算
最佳答案
- 五星知识达人网友：等灯
- 2021-11-28 08:37
4.2×8.3+59×0.83-0.83
=4.2x8.3+5.9x8.3-0.1x8.3
=（4.2+5.9-0.1）x8.3
=10x8.3
=83追问4.2×8.3+59×0.83-0.8简便方法追答4.2×8.3+59×0.83-0.8
=4.2×8.3+59×0.83-0.83+0.03
=4.2x8.3+5.9x8.3-0.1x8.3+0.03
=（4.2+5.9-0.1）x8.3+0.03
=10x8.3+0.03
=83.03
=4.2x8.3+5.9x8.3-0.1x8.3
=（4.2+5.9-0.1）x8.3
=10x8.3
=83追问4.2×8.3+59×0.83-0.8简便方法追答4.2×8.3+59×0.83-0.8
=4.2×8.3+59×0.83-0.83+0.03
=4.2x8.3+5.9x8.3-0.1x8.3+0.03
=（4.2+5.9-0.1）x8.3+0.03
=10x8.3+0.03
=83.03
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