2!=2*3,3!=3*4 5!=5*6*7*8*9按上面的规律计算4!/6!
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![2!=2*3,3!=3*4 5!=5*6*7*8*9按上面的规律计算4!/6!](/uploads/image/z/209953-1-3.jpg?t=2%21%3D2%2A3%2C3%21%3D3%2A4+5%21%3D5%2A6%2A7%2A8%2A9%E6%8C%89%E4%B8%8A%E9%9D%A2%E7%9A%84%E8%A7%84%E5%BE%8B%E8%AE%A1%E7%AE%974%21%2F6%21)
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2!=2*3,3!=3*4 5!=5*6*7*8*9按上面的规律计算4!/6!
2!=2*3,3!=3*4 5!=5*6*7*8*9按上面的规律计算4!/6!
2!=2*3,3!=3*4 5!=5*6*7*8*9按上面的规律计算4!/6!
4!/6!
=(4×5×6×7)/(6×7×8×9×10×11)
=(4×5)/(8×9×10×11)
=1/396
2x-3/4=5/6 .
5+6+4+3-2=?
1+2-3+4-5+6=
1+2+3+4+5-6=?
6 3 2=5 4 有几种填法
1+2+3+4+5+6=?
1+2+3+4+5+6=
1+2+3+4+5+6=
2 3 4 5 6 =44
1+2+3+4+5+6=
2+3+4+5+6 .=90
2/3x-5/6=5x-3/4
5+3+2=1510229+2+4=1836528+6+3=4824665+4+5=2025417+2+5=?
2+3=13 3+4=25 4+5=41 5+6=?
2+3=13,3+4=25,4+5=41,5+6=多少?
2+3=13 3+4=25 4+5=41 那么5+6= ?
2X除以2/3=6/5 2/3:4/5=3/10X
2/3*5/6+3/4x=11/2