用2·4·6·7·这四个数经过怎
答案：2X7+4+6=24，也可以通过以下组合得到24的，
2+((7*4)-6)
(2+(7*4))-6
((2*7)+4)+6
(2*7)+(4+6)
((2*7)+6)+4
(2*7)+(6+4)
2+((4*7)-6)
(2+(4*7))-6
2-(6-(7*4))
(2-6)+(7*4)
(2+6)*(7-4)
2-(6-(4*7))
(2-6)+(4*7)
((7*2)+4)+6
(7*2)+(4+6)
((7*2)+6)+4
(7*2)+(6+4)
(7-4)*(2+6)
((7*4)+2)-6
(7*4)+(2-6)
(7-4)*(6+2)
(7*4)-(6-2)
((7*...全部
答案：2X7+4+6=24，也可以通过以下组合得到24的，
2+((7*4)-6)
(2+(7*4))-6
((2*7)+4)+6
(2*7)+(4+6)
((2*7)+6)+4
(2*7)+(6+4)
2+((4*7)-6)
(2+(4*7))-6
2-(6-(7*4))
(2-6)+(7*4)
(2+6)*(7-4)
2-(6-(4*7))
(2-6)+(4*7)
((7*2)+4)+6
(7*2)+(4+6)
((7*2)+6)+4
(7*2)+(6+4)
(7-4)*(2+6)
((7*4)+2)-6
(7*4)+(2-6)
(7-4)*(6+2)
(7*4)-(6-2)
((7*4)-6)+2
(7*(6-2))-4
4+((2*7)+6)
(4+(2*7))+6
4+((7*2)+6)
(4+(7*2))+6
((4*7)+2)-6
(4*7)+(2-6)
(4*7)-(6-2)
((4*7)-6)+2
4+(6+(2*7))
(4+6)+(2*7)
4+(6+(7*2))
(4+6)+(7*2)
((6-2)*7)-4
(6+2)*(7-4)
6+((2*7)+4)
(6+(2*7))+4
6/(2-(7/4))
6+((7*2)+4)
(6+(7*2))+4
6+(4+(2*7))
(6+4)+(2*7)
6+(4+(7*2))
(6+4)+(7*2)。
收起
