1/(2/3)/(3/4)/(4/5)/(5/6)=?
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1/(2/3)/(3/4)/(4/5)/(5/6)=?
能简算的要简算1.1997+1998+1999+2000+2001+2002+2003+2004
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2.138*5/4+23.3*(2-75%)-125%*38+(1+0.25)*28.7
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3.2008/2008又2009分之2008+2010分之1
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打得好还加分
加15哦
能简算的要简算1.1997+1998+1999+2000+2001+2002+2003+2004
=
=
=
2.138*5/4+23.3*(2-75%)-125%*38+(1+0.25)*28.7
=
=
=
3.2008/2008又2009分之2008+2010分之1
=
=
=
打得好还加分
加15哦
1.=(1997+2003)+(1998+2002)+(1999+2001)+2004+2000
=4000+4000+4000+2000+2004
=16004
2.=138* 5/4 + 23.3* 5/4 + 38* 5/4 + 28.7* 5/4
=5/4 * (138+23.3+38+28.7)
=5/4 * (138+38+23.3+28.7)
=5/4 * 228
=285
3.=2008/(2008+2008/2009)+1/2010
=2008/[(2008*2009+2008)/2009] +1/2010
=2008/[(2008(2009+1)/2009]+1/2010
=2008/[(2010*2008) /2009]+1/2010
=2008* 2009/(2010*2008)+1/2010
=2009/2010+1/2010
=1
也怕看得懂了吧.这些题都很简单.其实你仔细思考一下应该都会的.以后关于数学还有什么问题,都可以问我.
=4000+4000+4000+2000+2004
=16004
2.=138* 5/4 + 23.3* 5/4 + 38* 5/4 + 28.7* 5/4
=5/4 * (138+23.3+38+28.7)
=5/4 * (138+38+23.3+28.7)
=5/4 * 228
=285
3.=2008/(2008+2008/2009)+1/2010
=2008/[(2008*2009+2008)/2009] +1/2010
=2008/[(2008(2009+1)/2009]+1/2010
=2008/[(2010*2008) /2009]+1/2010
=2008* 2009/(2010*2008)+1/2010
=2009/2010+1/2010
=1
也怕看得懂了吧.这些题都很简单.其实你仔细思考一下应该都会的.以后关于数学还有什么问题,都可以问我.
简便计算5/6-(3/4-1/2)=
计算:(-2/3)+(0.25)+(-1/6)-(+1/2)=?(3又3/5)+(+4又3/4)-(+1又2/5)+(-
已知1※3=1×2×3 4※5=4×5×6×7×8,则(6※4)/(3※4)=( )
1/(1*3)+1/(2*4)+1/(3*5)+1/(4*6)+...+1/(8*10)=?
B1 = (2,3,4,5);B2 = (3,4,5,6);W=(1,2,3)
规定1△3=1×2×3;4△5=4×5×6×7×8,那么(6△4)÷(3△4)=(
(1-3/(2*4))×(1-3/(3*5))×(1-3/(4*6))×.×(1-3/(97*99))=?
判断:1/4+2/5+3/5=1/4+(2/5+3/5)对错
1/6【1/4{1/3(1/2X-1)+3}+5】=1
1/(1+2+3)+1/(4+5+6)+.+1/(100+101+102) =?
1+(-2)+3+(-4)+5+(-6)+.+(+99)+(-100)=?
1×2×3×4=25(5²) 2×3×4×5=121(11²) 3×4×5×6=361(19