（4+4）×（12-9）=24
4*((9+9)-12) 4*(9+(9-12)) 4*(9-(12-9)) 4*((9-12)+9) 4*((9+9)-12) 4*(9+(9-12)) 4*(9-(12-9)) 4*((9-12)+9) (4-(12/9))*9 (4-(12/9))*9 9*(4-(12/9)) ((9+9)-12)*4 (9+(9-12))*4 (9-(12-9))*4 ((9-12)+9)*4 9*(4-(12/9)) ((9+9)-12)*4 (9+(9-...
(5/(4/12))+9 ((5/4)*12)+9 (5*12)-(9*4) (5*12)-(4*9) ((5*12)/4)+9 (5*(12/4))+9 9+(5/(4/12)) 9+((5/4)*12) 9+((5*12)/4) 9+(5*(12/4)) 9+((12*5)/4) 9+(12*(5/4)) 9+(12/(4/5)) 9+((12/4)*5) (12*5)-(9*4) (12*5)-(4*9) ((12*5)/4)+9 (12*(5...
4*((9+9)-12) 4*(9+(9-12)) 4*(9-(12-9)) 4*((9-12)+9) 4*((9+9)-12) 4*(9+(9-12)) 4*(9-(12-9)) 4*((9-12)+9) ((9+9)-12)*4 (9+(9-12))*4 (9-(12-9))*4 ((9-12)+9)*4 ((9+9)-12)*4 (9+(9-12))*4 (9-(12-9))*4 ((9-12)+9)*4
4+9-11+12=24
1. [4＋﹙1＋9﹚]＋10 2. [﹙1＋4﹚＋9]＋10 3. ﹙10＋9﹚＋﹙4＋1﹚
6+9x(12-10) =6+9x2 =6+18 =24; 6-9x(10-12) =6-9x(-2) =6-(-18) =24; 9x(10-6)-12 =9x4-12 =36-12 =24; 10x(12-9)-6 =10x3-6 =30-6 =24; …… 供参考。
(9-4-3)x12=24 4x9÷3+12=24 （12-9+3）x4=24
你好，你的这4个数字是不能列式计算得24的，所以此题无解，请采纳！
(9+9)÷9×12=24