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计算:2005×38−0.375×1949+3.75×2.4

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计算:2005×
3
8
−0.375×1949+3.75×2.4
计算:2005×38−0.375×1949+3.75×2.4
2005×
3
8-0.375×1949+3.75×2.4
=2005×0.375-0.375×1949+3.75×2.4
=2005×0.375-0.375×1949+0.375×24
=(2005-1949+24)×0.375
=80×0.375
=30.