6/7乘以( )=3/5乘以( )=9乘以( )=0.2乘以( )=1

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6/7乘以( )=3/5乘以( )=9乘以( )=0.2乘以( )=1

6/7乘以( )=3/5乘以( )=9乘以( )=0.2乘以( )=1
6/7乘以( )=3/5乘以( )=9乘以( )=0.2乘以( )=1

6/7乘以( )=3/5乘以( )=9乘以( )=0.2乘以( )=1
6/7x(7/6)=3/5x(5/3)=9x(1/9)=0.2x(5)=1

6/7乘以(7/6 )=3/5乘以(5/3 )=9乘以(1/9 )=0.2乘以(5 )=1

6/7乘以( 7/6)=3/5乘以(5/3 )=9乘以(1/9 )=0.2乘以(5 )=1
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70642=7乘( )+6乘( )+4乘以( )+2乘以( ) 6/7乘以( )=3/5乘以( )=9乘以( )=0.2乘以( )=1 1乘以2乘以3+2乘以3乘以4+3乘以4乘以5+...+7乘以8乘以9 0除以3乘以4乘以5乘以6乘以7乘以8乘以9乘以10除以3除以2等于 观察1乘以2乘以3乘以4+1=25=5² 2乘以3乘以4乘以5+1=121=11²3乘以4乘以5乘以6+1=361=19²(1)计算5乘以6乘以7乘以8+1的结果是多少?(2)由此你能推出一般的结论吗? 1+2乘以3+4乘以5+6乘以7+8乘以9=1005 在上面各式当中添上适当的括号使等式成立 九乘以7/18,1/4乘于2/5,2/3乘于9/10,5/6乘以12,4/25乘以1000,45乘以3/5,4/11乘于11/4 =3乘以2乘以1,=4乘以3乘以2乘以1,=5乘以4乘以3乘以2乘以1,那么100!除以99! 已知甲数=2乘以3乘以3乘以5乘以7,乙数=2乘以2乘以5乘以5乘以7,求甲数和乙数的最大公因数 7乘以(未知数+2)=5乘以(未知数+9)12乘以(60-未知数)=7乘以(20-未知数) 1.2乘以(-1又5分之4)乘以(-2.5)乘以(-9分之7)=? 第一个等式:a1=1×3分之一=2分之一×(1-3分之一)a1=1乘以3分之1=2分之1乘以(1-3分之1)a2=3乘以5分之1=2分之1乘以(3分之1-5分之1)a3=5乘以7分之1=2分之1乘以(5分之1-7分之1)a4=7乘以9分之1=2分之1乘 已知3乘以x的平方-x=1,求6乘以X的立方+7乘以x的平方-5乘以x+2007的值 4除以5/3除以9/20=4乘以3/5乘以20/9=4/3乘以4=16/32/9乘以0.125除以6/7=2/9乘以1/8乘以7/6=1/36乘以7/6=7/216不对请改正! 分数简算 3/4乘以16= 12除以3/5= 0.3乘以5/6= 1除以7/8=5/7乘以2/3除以5/7 1/2乘以1/3除以1/2乘以1/3 0乘以7/12+1/8 48乘以(7/12+1/3)除以2/3 23-8/9乘以3/4除以1/27 5除以[(2/3+1/5)乘以1/13] (7/10+4/3)乘以5;135乘以8/9乘以3/4;6/11乘以7/8-6/8乘以6/11 (-36)乘以(-9分之4)+(-36)乘以6分之5+12分之7=? 1+2乘以3+4乘以5+6乘以7+8乘以9=505在这个算式中合适的地方添上括号使等式成立.谢谢你了