
2.05×0.82+36.5的简便运算?
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2.05×0.82+36.5
=2.05×2×0.41+36.5
=4.1×0.41+36.5
=4×0.41+0.1×0.41+36.5
=1.64+0.041+36.5
=1.681+36.5
=38.181
=2.05×2×0.41+36.5
=4.1×0.41+36.5
=4×0.41+0.1×0.41+36.5
=1.64+0.041+36.5
=1.681+36.5
=38.181

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计算过程如下:首先,计算4个数值的和:∑Xs = 0.3 + 0.2 + 0.4 + 0.1 = 1然后,计算 lg-1(∑Xs/4):lg-1(∑Xs/4) = lg-1(1/4) = -1其中,lg表示以10为底的对数,即 log10。...
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2.05×0.82+36.5
=2.05×2×0.41+36.5
=4.1×0.41+36.5
=4×0.41+0.1×0.41+36.5
=1.64+0.041+36.5
=1.681+36.5
=38.181
=2.05×2×0.41+36.5
=4.1×0.41+36.5
=4×0.41+0.1×0.41+36.5
=1.64+0.041+36.5
=1.681+36.5
=38.181
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亲~这道题由我来回答,答案是,38.181
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