找到10种解法:
1:
((12 imes7)/4)+3
((12×7)/4)+3 = 24
2:
(12/(4/7))+3
(12/(4/7))+3 = 24
3:
(12/(3/7))-4
(12/(3/7))−4 = 24
4:
((12/4) imes7)+3
((12/4)×7)+3 = 24
5:
((7/4) imes12)+3
((7/4)×12)+3 = 24
6:
(7/(4/12))+3
(7/(4/12))+3 = 24
7:
(3 imes7)+(12/4)
(3×7)+(12/4) = 24
8:
(12/4)+(3 imes7)
(12/4)+(3×7) = 24
9:
((12/3) imes7)-4
((12/3)×7)−4 = 24
10:
((12 imes7)/3)-4
((12×7)/3)−4 = 24
3 4 12 7组成24度:12/4*7+3=24。