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计算:0.365×640+312

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计算:0.365×640+3
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计算:0.365×640+312
0.365×640+3
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2×36.5+365×0.01
=365×0.64+3.5×36.5+365×0.01,
=365×0.64+0.35×365+365×0.01,
=(0.64+0.35+0.01)×365,
=1×365,
=365.