合24題目解答

1. (1+1+1)×8
2. (9-1)×(2+1)
3. (5×5)-(2-1)
4. (1+7)×(9÷3)
5. (9-1)×(10-7)
6. (10+2)×(5-3)
7. 8×(9-4-2)
8. 8×(7÷7+2)
9. (5×5)-(11÷11)
10. (10+11)÷7×8 呢題最難
11. (5+1)×4×1
12. (8+8+8)×1
13. (1+11+12)×1
14. 4×6×(10-9)
15. 4×[7-(7÷7)]
16. 4×[8-(9-7)]
17. 6×[5-(6-5)]
18. 6×(5+7-8)
19. (10-6)+10+10
20. 12+(10+2)×1

方法千篇一律,
24= 1×24 or 2×12 or 3×8 or 4×6 或一些加數
用了30min
第10題用了18min= =

1.(1+1+1)x8
2.(9-1)x(1+2)
3.5x5-2+1
4.7x9-3x1
5.(9-1)x(10-7)
6.(10+2)x(5-3)
7.(9-4-2)x8
8.7+7+8+2
9.5x5x(11÷11)
10.I don't know
11.4x(5+1)x1
12.(8+8+8)x1
13.(11+12+1)x1
14.6x4x(10-9)
15.(7-7÷7)x4
16.4x(7-9+8)
17.6x(5-6+5)
18.(5-8+7)x6
19.10+10+10-6
20.(10+12+2)x1