计算:23.6+[3.9-(17.8-4.8+15.4)]

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计算:23.6+[3.9-(17.8-4.8+15.4)]计算:23.6+[3.9-(17.8-4.8+15.4)]计算:23.6+[3.9-(17.8-4.8+15.4)]23.6+[3.9-(17

计算:23.6+[3.9-(17.8-4.8+15.4)]
计算:23.6+[3.9-(17.8-4.8+15.4)]

计算:23.6+[3.9-(17.8-4.8+15.4)]
23.6+[3.9-(17.8-4.8+15.4)]
=23.6+[3.9-(13+15.4)]
=23.6+(3.9-28.4)
=23.6+3.9-28.4
=27.5-28.4
=-0.9

29.9

23.6+[3.9-(17.8-4.8+15.4)]
=23.6+[3.9-(13+15.4)]
=23.6+(3.9-28.4)
=23.6-24.5
=-0.9

-0.9

=-1.1

-0.9