以下各組數字，再加入「+」、「-」、「x」、「÷」，必可併出24。快快快快！！！！！

(1)1.2.4.5
4 * (5+2-1) = 4*6 = 24

(2)1.3.5.7
(5+7)*(3-1) = 12*2 = 24

(3)2.4.6.8
(6*8)/(4-2) = 48 / 2 = 24

(4)2.5.6.7
6 * (7-5+2) = 6*4 = 24

(5)3.5.6.9
3 * (9 - 6 + 5) = 3*8 = 24

(6)2.6.8.9
(9*2/6)*8 = 3*8 = 24

(7)1.5.5.5
[5-(1/5)] * 5 = (24/5) * 5 = 24

(8)1.4.5.6
6/(5/4-1) = 6 / (1/4) = 24

(9)1.6.6.8
6/(1-6/8) = 6 / (2/8) = 24

(10)3.3.8.8
8/(3-8/3) = 8 / (1/3) = 24

(1) (2+5-1)x4=24
(2) (7+5)-(3-1)=24
(3) 8x6÷4x2=24
(4) 2x6+5+7=24
(5) 5x6-9+3=24
(6) 9÷(6÷2)x8=24




唔好意思!!其他我唔識計la~~

2007-12-25 13:00:07 補充：
7) [5-(1/5)] * 5 = (24/5) * 5 = 24(8) 6/(5/4-1) = 6 / (1/4) = 24(9) 6/(1-6/8) = 6 / (2/8) = 24(10) 8/(3-8/3) = 8 / (1/3) = 24

1.4x(5+2-1)
2.(5+7)x(3-1)
3.(4x8)-(2+6)
5.(5x6)-(9-3)


其他我再幫你唸唸啦.........