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(1丶9丶7丶7)算24点

((1+9)+7)+7 1+((9+7)+7) (1+(9+7))+7 1+(9+(7+7)) (1+9)+(7+7) ((1+9)+7)+7 1+((9+7)+7) (1+(9+7))+7 1+(9+(7+7)) (1+9)+(7+7) ((1+7)+9)+7 1+((7+9)+7) (1+(7+9))+7 1+(7+(9+7)) (1+7)+(9+7) ((1+7)+7)+9 1+((7+7)+9) (1+(7+7))+9 1+(7+(7+9))...

(1-7)*(5-9)=24 (7-1)*(9-5)=24 (5-9)*(1-7)=24 (9-5)*(7-1)=24

((8-1)*3)+3 ((8+1)*3)-3 ((8-1)*3)+3 ((8+1)*3)-3 3+((8-1)*3) (3*(8-1))+3 (3*(8+1))-3 3+(3*(8-1)) 3-(3*(1-8)) 3-((1-8)*3) (3*(1+8))-3 3+((8-1)*3) (3*(8-1))+3 (3*(8+1))-3 3+(3*(8-1)) 3-(3*(1-8)) 3-((1-8)*3) (3*(1+8))-3 ((1+8)*3)-3...

(7-1)×(9-5)=6×4=24

1*(9+8+7)=24; 1*9+8+7=24; 1*8+9+7=24; 1*7+9+8=24; 满意请采纳

(7+1)*(9/3)=24

你好,用1,4,7,9算24点,共有4种算法。 1.﹙4-7﹚×﹙1-9﹚ 2.﹙1-9﹚×﹙4-7﹚ 3.﹙9-1﹚×﹙7-4﹚ 4.﹙7-4﹚×﹙9-1﹚

(1+11)*(9-7)=24 (9-7)*(1+11)=24 (9-7)*(11+1)=24 (11+1)*(9-7)=24

1,2,3,4,5,6,8,12,24 只有一条对角线不对,难道题目有问题2,3,4,5,6,8,12,24,13,4,5,6,8,12,24,1,2 4,5,6,8,12,24,1,2,35,6,8,12,24,1,2,3,46,8,12,24,1,2,3,4,58,12,24,1,2,3,4,5,612,24,1,2,3,4,5,6,824,1,2,3,4,5,6,8,12

(7x1-3)x6=24 (7-3x1)x6=24 (7-3)x6x1=24

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