(-0.34)×(-0.75)+(-0.34)×(-0.25)-0.34×3分之一+0.34×(-3分之2)
6个回答
(-0.34)×(-0.75)+(-0.34)×(-0.25)-0.34×3分之一+0.34×(-3分之2)
=0.34×(0.75+0.25-1/3-2/3)
=0.34×0
=0
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计算:-13×[2/3]-0.34×[2/7]+[1/3]×(-13)-[5/7]×0.34.
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