24.6一4.8x3.7简便方法
答案:1 悬赏:20 手机版
解决时间 2021-03-06 03:57
- 提问者网友:雪舞兮
- 2021-03-05 12:30
24.6一4.8x3.7简便方法
最佳答案
- 五星知识达人网友:第幾種人
- 2021-03-05 13:48
24.6一4.8x3.7
=25-0.4-4.8x3.7
=25-0.4-(5-0.2)x3.7
=25-0.4-5x3.7+0.2x3.7
=5x1.3-0.4+0.2x3.7
=5x1.3+0.2x(3.7-2)
=5x1.3+0.2x1.7
=6.5+0.34
=6.84
=25-0.4-4.8x3.7
=25-0.4-(5-0.2)x3.7
=25-0.4-5x3.7+0.2x3.7
=5x1.3-0.4+0.2x3.7
=5x1.3+0.2x(3.7-2)
=5x1.3+0.2x1.7
=6.5+0.34
=6.84
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