3+1/2+1/3+1/4+5=?
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/30 13:34:06
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1 2 3 4 5=1
1()2()3()4()5=1
1+1-2+3-4+5=?
1+2+3-4-5+1+1+2+3=
巧算：(1+1/2+1/3+1/4+1/5)*(1/2+1/3+1/4+1/5+1/6)-(1+1/2+1/3+1/4+1/5+1/6)*(1/2+1/3+1/4+1/5)(1+1/2+1/3+1/4+1/5)*(1/2+1/3+1/4+1/5+1/6)-(1+1/2+1/3+1/4+1/5+1/6)*(1/2+1/3+1/4+1/5)=====
3+1/2+1/3+1/4+5=?
1+3-5*4^2-3=
1/1*2+1/2*3+1/3*4+1/4*5+.+1/39*40=?
1/1*2+1/2*3+1/3*4+1/4*5+.+1/2004*2005=?
1/1*2+1/2*3+1/3*4+1/4*5+^+1/199*200=?
(1+1/2)*(1-1/2)*(1+1/3)*(1-1/3)*(1+1/4)*(1-1/4)*(1+1/5)*(1-1/5)=?
|2/1-1|=|5/1-3/1|=|4/3-5/4|=
1/1*3+1/2*4+1/3*5+1/4*6+.+1/100*102=?
1+1=?还有1+2+3+4+5=?
2×3/1+3×4/1+4×5/1+5×6/1+.199×200/1=?
1+2=3 4+5=?
1.（1+1/2+1/3+1/4）*（1/2+1/3+1/4+1/5）-（1+1/2+1/3+1/4+1/5）*（1/2+1/3+1/4）=2.（1+1/2+1/3+1/4+1/5）*（1/2+1/3+1/4+1/5+1/6）-（1+1/2+1/3+1/4+1/5+1/6）*（1/2+1/3+1/4+1/5）=
1=5 2=1 5 3=2 1 5 4=3 2 1 5 5=?