100-123.1*0.3怎么简便?

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100-123.1*0.3怎么简便?100-123.1*0.3怎么简便?100-123.1*0.3怎么简便?100-123.1*0.3=100-(100+23.1)×0.3=100-100×0.3-2

100-123.1*0.3怎么简便?
100-123.1*0.3怎么简便?

100-123.1*0.3怎么简便?
100-123.1*0.3
=100-(100+23.1)×0.3
=100-100×0.3-23.1×0.3
=100-30-6.93
=63.07