1 2 3 4 6 7
1+2+3+4+5+6+7
1×2×3×4×5×6×7
1 2 3 4 6 7
1,2 ,3,4,5,6,7
3/4*6/7除以(1/2+2)-2/7
:(1/2+2/3+3/4+4/5+5/6+6/7)+(1/2+2/3+3/4+4/5+5/6+6/7)*1/2—(1+
1\7;2\7;3\7;4\7;5\7;6\7以次类推找出规律
数字推理:1,4,3,5,2,6,4,7,
1+2+3+4+5+6+7+8+9+8+7+4+56+1+2+3
1+2+3+4+5+6+4+3+2+4+56+7+7+8+89+9+0+7+7+7+7+7+7+7++5+53+3+33
7+7+7+7+7+7+1+2+3+4+5+6+7+0+8+91+2+3+4+5+6+7+8+9+0+123+456+7
1/(2/3)/(3/4)/(4/5)/(5/6)/(6/7)/(7/8) 用简算