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1,3.6*42.3*3.75-12.5*0.423*282,1.001+2.003+1.005+2.007+1.009+2.001+...+1.197+2.1993,(1+0.18+0.68)*(1+0.18+0.68+0.88)*(0.18+0.68)

题目详情
1,3.6*42.3*3.75-12.5*0.423*28
2,1.001+2.003+1.005+2.007+1.009+2.001+...+1.197+2.199
3,(1+0.18+0.68)*(1+0.18+0.68+0.88)*(0.18+0.68)
▼优质解答
答案和解析
1、3.6*42.3*3.75-12.5*0.423*28
=3.6*42.3*3.75-12.5*42.3*0.28
=42.3(3.6*3.75-12.5*0.28)
=42.5(13.5-3.5)
=42.5*10
=425
呃..我要睡觉了
来不及帮你做了
明天再告诉你吧..
直接来百度问也没事..