速算24点 3,-3,7,-7 (3+(-3/-7))*7(-3-(3/7))*-7((-3/7)-3)*-7((-3/-7)+3)*77*(3+(-3/-7))7*((-3/-7)+3)-7*(-3-(3/7))-7*((-3/7)-3) admin 2024-11-10 # 速算24点 3 3 7