简算100+99.9-99.8-99.7+···+0.4+0.3-0.2-0.1
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简算100+99.9-99.8-99.7+···+0.4+0.3-0.2-0.1
简算100+99.9-99.8-99.7+···+0.4+0.3-0.2-0.1
简算100+99.9-99.8-99.7+···+0.4+0.3-0.2-0.1
一共1000个数,4个一组共250组,每组加和等于0.4,就是0.4*250=100
简算100+99.9-99.8-99.7+···+0.4+0.3-0.2-0.1
99.9+99.8-99.7=?简便计算
100+99.9-99.8-99.7+99.6+99.5-99.4-99.3+…...+0.4+0.3-0.2-0.1
小学数学,递等式100+99.9-99.8-99.7+99.6+99.5-99.4-99.3+……+0.4+0.3-0.2-0.1=
19.94+99.7×99.8
matlab里的问题,>> n=2:40;>> a(n)=[102.0 101.9 102.0 102.6 100.9 100.0 100.3 100.0 100.1 100.0 100.0 100.2 100.0 99.9 99.8 99.8 99.9 100.0 99.9 99.7 99.8 99.8 99.9 99.9 99.9 99.9 99.6 99.9 100.0 100.3 100.3 100.1 100.1 100.2 100.6 100.8 101.6 102.
巧算 99.6+99.8+99.7+99.1
19.94+99.7×99.8 help me
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