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用3.4.7.12算出24点

3+(7/(4/12)) 3+((7/4)*12) 3+((7*12)/4) 3+(7*(12/4)) (3*7)+(12/4) 3+(12/(4/7)) 3+((12/4)*7) 3+((12*7)/4) 3+(12*(7/4)) (4*7)-(12/3) (7/(3/12))-4 ((7/3)*12)-4 (7*3)+(12/4) (7/(4/12))+3 ((7/4)*12)+3 (7*4)-(12/3) ((7*12)/3)-4 (7*(12...

3*((12-7-(-3)))

﹙5+5﹚÷﹙5÷12﹚ [﹙5+5﹚×12]÷5 [﹙5+5﹚÷5]×12 我知道这三种 不谢

[(-5) ×( -13) + 7] ÷ 3=24

7,3,3,7 1: 7 × (3 + 3 ÷ 7) 2: 7 × (3 + (3 ÷ 7)) 3: 7 × (3 ÷ 7 + 3) 4: 7 × ((3 ÷ 7) + 3) 5: (3 ÷ 7 + 3) × 7 6: ((3 ÷ 7) + 3) × 7 7: (3 + 3 ÷ 7) × 7 8: (3 + (3 ÷ 7)) × 7 1,3,9,0 (1-9)*(0-3) 3*((9-1)-0) (3*(9-1))-0 3*(9-(1-0...

(1) (3-(-3/7))*7=24 (2) ((-3/-7)+3)*7=24 ((-3/7)-3)*-7=24 (-3-(3/7))*-7=24 (3)这个多了,有几十种吧: ((-12*3)+12)*-1=24 (-12/(-1^3))+12=24 (12*3)-(-12/-1)=24 (4)这个加减乘除不行,必须加上乘方 (1- -2)*(2^3)=24 ((-2-3)^2)...

4,4,7,7 (4-4/7)*7 1,5,5,5 (5-1/5)*5 5,5,5,5 5*5-5/5 1,3,4,6 6/(1-3/4) 13,11,7,2 12,13,11,4 9,4,3,7 3,7,2,1

有 牢记: 3*8 4*6 2*12 96/4 72*3 48/2 比如说 10 10 4 4 (10*10-4)/4 A 10 7 A (1+1)*7+10 4 A 7 A (4-1)*(7+1)或4*1*(7-1) 3 A 4 A (1+1)*3*4

1,8,12,12 1: 12 ÷ (12 ÷ 8 - 1) 2: 12 ÷ ((12 ÷ 8) - 1) 3,11,13,9 1: (3 + 9) × (13 - 11) 2: (13 - 11) × (3 + 9) 3: (13 - 11) × (9 + 3) 4: (9 + 3) × (13 - 11) 5,4,7,1 1: (5 - 1) × 7 - 4 2: ((5 - 1) × 7) - 4 3: 4 × 7 - 5 + 1 4: (4 ...

1.2.7.7 1.3.4.6 1.3.12.13 1.7.13.13 1.8.12.12 1.5.11.11 1.6.6.8 1.6.11.13 2.2.10.11 5.11.12.12 8.9.10.12

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